2044001542 has 16 divisors (see below), whose sum is σ = 3399563664. Its totient is φ = 913860000.

The previous prime is 2044001527. The next prime is 2044001549. The reversal of 2044001542 is 2451004402.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2044001549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 760209 + ... + 762892.

It is an arithmetic number, because the mean of its divisors is an integer number (212472729).

Almost surely, 2^2044001542 is an apocalyptic number.

2044001542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2044001542 is a deficient number, since it is larger than the sum of its proper divisors (1355562122).

2044001542 is a wasteful number, since it uses less digits than its factorization.

2044001542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523175.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 2044001542 is about 45210.6352753420. The cubic root of 2044001542 is about 1269.0938504819.

Adding to 2044001542 its reverse (2451004402), we get a palindrome (4495005944).

The spelling of 2044001542 in words is "two billion, forty-four million, one thousand, five hundred forty-two".