874181538 has 32 divisors (see below), whose sum is σ = 1944750720. Its totient is φ = 291075120.

The previous prime is 874181537. The next prime is 874181543. The reversal of 874181538 is 835181478.

It is a happy number.

874181538 is a `hidden beast` number, since 87 + 418 + 153 + 8 = 666.

874181538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×874181538² = 1528386722760090888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 874181493 and 874181502.

It is not an unprimeable number, because it can be changed into a prime (874181533) 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, 43848 + ... + 60588.

It is an arithmetic number, because the mean of its divisors is an integer number (60773460).

Almost surely, 2^874181538 is an apocalyptic number.

874181538 is an abundant number, since it is smaller than the sum of its proper divisors (1070569182).

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

874181538 is a wasteful number, since it uses less digits than its factorization.

874181538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17719 (or 17713 counting only the distinct ones).

The product of its digits is 215040, while the sum is 45.

The square root of 874181538 is about 29566.5611459973. The cubic root of 874181538 is about 956.1672771193.

The spelling of 874181538 in words is "eight hundred seventy-four million, one hundred eighty-one thousand, five hundred thirty-eight".