538678236 has 12 divisors (see below), whose sum is σ = 1256915912. Its totient is φ = 179559408.

The previous prime is 538678223. The next prime is 538678241. The reversal of 538678236 is 632876835.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 22444915 + ... + 22444938.

Almost surely, 2^538678236 is an apocalyptic number.

It is an amenable number.

538678236 is an abundant number, since it is smaller than the sum of its proper divisors (718237676).

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

538678236 is a wasteful number, since it uses less digits than its factorization.

538678236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44889860 (or 44889858 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 48.

The square root of 538678236 is about 23209.4428196801. The cubic root of 538678236 is about 813.6603311287.

The spelling of 538678236 in words is "five hundred thirty-eight million, six hundred seventy-eight thousand, two hundred thirty-six".