538214688 has 72 divisors (see below), whose sum is σ = 1669698576. Its totient is φ = 163094400.

The previous prime is 538214657. The next prime is 538214689. The reversal of 538214688 is 886412835.

It is a tau number, because it is divible by the number of its divisors (72).

It is not an unprimeable number, because it can be changed into a prime (538214689) 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, 81778 + ... + 88113.

It is an arithmetic number, because the mean of its divisors is an integer number (23190258).

Almost surely, 2^538214688 is an apocalyptic number.

It is an amenable number.

538214688 is an abundant number, since it is smaller than the sum of its proper divisors (1131483888).

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

538214688 is a wasteful number, since it uses less digits than its factorization.

538214688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169918 (or 169907 counting only the distinct ones).

The product of its digits is 368640, while the sum is 45.

The square root of 538214688 is about 23199.4544763449. The cubic root of 538214688 is about 813.4268715020.

The spelling of 538214688 in words is "five hundred thirty-eight million, two hundred fourteen thousand, six hundred eighty-eight".