538672404 has 24 divisors (see below), whose sum is σ = 1330838208. Its totient is φ = 168995200.

The previous prime is 538672373. The next prime is 538672427. The reversal of 538672404 is 404276835.

It is a happy number.

It is a super-2 number, since 2×538672404² = 580335917662278432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1320072 + ... + 1320479.

It is an arithmetic number, because the mean of its divisors is an integer number (55451592).

Almost surely, 2^538672404 is an apocalyptic number.

It is an amenable number.

538672404 is an abundant number, since it is smaller than the sum of its proper divisors (792165804).

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

538672404 is a wasteful number, since it uses less digits than its factorization.

538672404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2640575 (or 2640573 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 39.

The square root of 538672404 is about 23209.3171808220. The cubic root of 538672404 is about 813.6573947535.

The spelling of 538672404 in words is "five hundred thirty-eight million, six hundred seventy-two thousand, four hundred four".