538648004 has 12 divisors (see below), whose sum is σ = 944176044. Its totient is φ = 268883424.

The previous prime is 538647997. The next prime is 538648013. The reversal of 538648004 is 400846835.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 66455104 + 472192900 = 8152^2 + 21730^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107387 + ... + 112290.

It is an arithmetic number, because the mean of its divisors is an integer number (78681337).

Almost surely, 2^538648004 is an apocalyptic number.

It is an amenable number.

538648004 is a deficient number, since it is larger than the sum of its proper divisors (405528040).

538648004 is a wasteful number, since it uses less digits than its factorization.

538648004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220294 (or 220292 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 538648004 is about 23208.7915239032. The cubic root of 538648004 is about 813.6451092778.

The spelling of 538648004 in words is "five hundred thirty-eight million, six hundred forty-eight thousand, four".