538332690 has 32 divisors (see below), whose sum is σ = 1476570240. Its totient is φ = 123047424.

The previous prime is 538332671. The next prime is 538332731. The reversal of 538332690 is 96233835.

It is a super-2 number, since 2×538332690² = 579604170245272200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1281535 + ... + 1281954.

It is an arithmetic number, because the mean of its divisors is an integer number (46142820).

Almost surely, 2^538332690 is an apocalyptic number.

538332690 is an abundant number, since it is smaller than the sum of its proper divisors (938237550).

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

538332690 is a wasteful number, since it uses less digits than its factorization.

538332690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2563506.

The product of its (nonzero) digits is 116640, while the sum is 39.

The square root of 538332690 is about 23201.9975433151. The cubic root of 538332690 is about 813.4863143141.

The spelling of 538332690 in words is "five hundred thirty-eight million, three hundred thirty-two thousand, six hundred ninety".