2004038428 has 24 divisors (see below), whose sum is σ = 4013833824. Its totient is φ = 857640000.

The previous prime is 2004038423. The next prime is 2004038441. The reversal of 2004038428 is 8248304002.

It is a super-2 number, since 2×2004038428² = 8032340041801422368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2004038428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004038423) 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, 31423 + ... + 70678.

It is an arithmetic number, because the mean of its divisors is an integer number (167243076).

Almost surely, 2^2004038428 is an apocalyptic number.

2004038428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2004038428 is an abundant number, since it is smaller than the sum of its proper divisors (2009795396).

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

2004038428 is a wasteful number, since it uses less digits than its factorization.

2004038428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102813 (or 102811 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 2004038428 is about 44766.4877782477. The cubic root of 2004038428 is about 1260.7684964995.

The spelling of 2004038428 in words is "two billion, four million, thirty-eight thousand, four hundred twenty-eight".