2440044 has 60 divisors (see below), whose sum is σ = 6769224. Its totient is φ = 763776.

The previous prime is 2440043. The next prime is 2440049. The reversal of 2440044 is 4400442.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 2439999 and 2440026.

It is not an unprimeable number, because it can be changed into a prime (2440043) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5287 + ... + 5729.

2^2440044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2440044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3384612).

2440044 is an abundant number, since it is smaller than the sum of its proper divisors (4329180).

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

2440044 is a wasteful number, since it uses less digits than its factorization.

2440044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476 (or 465 counting only the distinct ones).

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

The square root of 2440044 is about 1562.0640191746. The cubic root of 2440044 is about 134.6271191696.

Adding to 2440044 its reverse (4400442), we get a palindrome (6840486).

It can be divided in two parts, 2 and 440044, that multiplied together give a palindrome (880088).

The spelling of 2440044 in words is "two million, four hundred forty thousand, forty-four".