2044242 has 18 divisors (see below), whose sum is σ = 4442373. Its totient is φ = 679392.

The previous prime is 2044201. The next prime is 2044243. The reversal of 2044242 is 2424402.

It can be written as a sum of positive squares in 2 ways, for example, as 1929321 + 114921 = 1389^2 + 339^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=1011.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2044243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5898 + ... + 6234.

2^2044242 is an apocalyptic number.

2044242 is an abundant number, since it is smaller than the sum of its proper divisors (2398131).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2044242 is an equidigital number, since it uses as much as digits as its factorization.

2044242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 2044242 is about 1429.7699115592. The cubic root of 2044242 is about 126.9143614274.

Multiplying 2044242 by its sum of digits (18), we get a square (36796356 = 6066²).

2044242 divided by its sum of digits (18) gives a square (113569 = 337²).

Multiplying 2044242 by its product of nonzero digits (512), we get a square (1046651904 = 32352²).

Adding to 2044242 its reverse (2424402), we get a palindrome (4468644).

Multiplying 2044242 by its reverse (2424402), we get a square (4956064393284 = 2226222²).

The spelling of 2044242 in words is "two million, forty-four thousand, two hundred forty-two".