867481920 has 112 divisors (see below), whose sum is σ = 3060313920. Its totient is φ = 231326208.

The previous prime is 867481913. The next prime is 867481931. The reversal of 867481920 is 29184768.

867481920 is a `hidden beast` number, since 86 + 7 + 481 + 92 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41562 + ... + 58841.

Almost surely, 2^867481920 is an apocalyptic number.

867481920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

867481920 is an abundant number, since it is smaller than the sum of its proper divisors (2192832000).

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

867481920 is a wasteful number, since it uses less digits than its factorization.

867481920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100429 (or 100413 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 867481920 is about 29453.0460224405. The cubic root of 867481920 is about 953.7183615451.

The spelling of 867481920 in words is "eight hundred sixty-seven million, four hundred eighty-one thousand, nine hundred twenty".