538021008 has 80 divisors (see below), whose sum is σ = 1764946560. Its totient is φ = 153719424.

The previous prime is 538020997. The next prime is 538021009. The reversal of 538021008 is 800120835.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (538021009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85935 + ... + 91982.

It is an arithmetic number, because the mean of its divisors is an integer number (22061832).

Almost surely, 2^538021008 is an apocalyptic number.

It is an amenable number.

538021008 is an abundant number, since it is smaller than the sum of its proper divisors (1226925552).

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

538021008 is a wasteful number, since it uses less digits than its factorization.

538021008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177941 (or 177929 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 538021008 is about 23195.2798646621. The cubic root of 538021008 is about 813.3292875071.

The spelling of 538021008 in words is "five hundred thirty-eight million, twenty-one thousand, eight".