38402004 has 24 divisors (see below), whose sum is σ = 92027488. Its totient is φ = 12454560.

The previous prime is 38401999. The next prime is 38402011. The reversal of 38402004 is 40020483.

It is a happy number.

It is a super-2 number, since 2×38402004² = 2949427822432032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42802 + ... + 43689.

Almost surely, 2^38402004 is an apocalyptic number.

It is an amenable number.

38402004 is an abundant number, since it is smaller than the sum of its proper divisors (53625484).

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

38402004 is a wasteful number, since it uses less digits than its factorization.

38402004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86535 (or 86533 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 38402004 is about 6196.9350488770. The cubic root of 38402004 is about 337.3789349042.

Adding to 38402004 its reverse (40020483), we get a palindrome (78422487).

The spelling of 38402004 in words is "thirty-eight million, four hundred two thousand, four".