20037042 has 24 divisors (see below), whose sum is σ = 43612140. Its totient is φ = 6648480.

The previous prime is 20037041. The next prime is 20037053. The reversal of 20037042 is 24073002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15280281 + 4756761 = 3909^2 + 2181^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20037041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1692 + ... + 6552.

Almost surely, 2^20037042 is an apocalyptic number.

20037042 is an abundant number, since it is smaller than the sum of its proper divisors (23575098).

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

20037042 is a wasteful number, since it uses less digits than its factorization.

20037042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5098 (or 5095 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 20037042 is about 4476.2754606927. The cubic root of 20037042 is about 271.6092374037.

It can be divided in two parts, 2003 and 7042, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 20037042 in words is "twenty million, thirty-seven thousand, forty-two".