538664328 has 48 divisors (see below), whose sum is σ = 1509194700. Its totient is φ = 173362560.

The previous prime is 538664327. The next prime is 538664359. The reversal of 538664328 is 823466835.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 527253444 + 11410884 = 22962^2 + 3378^2 .

It is not an unprimeable number, because it can be changed into a prime (538664327) 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, 126903 + ... + 131078.

Almost surely, 2^538664328 is an apocalyptic number.

538664328 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

538664328 is an abundant number, since it is smaller than the sum of its proper divisors (970530372).

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

538664328 is a wasteful number, since it uses less digits than its factorization.

538664328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258022 (or 258015 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The square root of 538664328 is about 23209.1431983173. The cubic root of 538664328 is about 813.6533285035.

The spelling of 538664328 in words is "five hundred thirty-eight million, six hundred sixty-four thousand, three hundred twenty-eight".