538397670 has 64 divisors (see below), whose sum is σ = 1315486656. Its totient is φ = 141004800.

The previous prime is 538397647. The next prime is 538397689. The reversal of 538397670 is 76793835.

It is a super-2 number, since 2×538397670² = 579744102122857800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 414462 + ... + 415758.

It is an arithmetic number, because the mean of its divisors is an integer number (20554479).

Almost surely, 2^538397670 is an apocalyptic number.

538397670 is an abundant number, since it is smaller than the sum of its proper divisors (777088986).

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

538397670 is a wasteful number, since it uses less digits than its factorization.

538397670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545.

The product of its (nonzero) digits is 952560, while the sum is 48.

The square root of 538397670 is about 23203.3978115275. The cubic root of 538397670 is about 813.5190438974.

The spelling of 538397670 in words is "five hundred thirty-eight million, three hundred ninety-seven thousand, six hundred seventy".