72154884 has 48 divisors (see below), whose sum is σ = 174147008. Its totient is φ = 23234688.

The previous prime is 72154883. The next prime is 72154891. The reversal of 72154884 is 48845127.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (72154883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71874 + ... + 72870.

Almost surely, 2^72154884 is an apocalyptic number.

72154884 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

72154884 is an abundant number, since it is smaller than the sum of its proper divisors (101992124).

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

72154884 is a wasteful number, since it uses less digits than its factorization.

72154884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1204 (or 1202 counting only the distinct ones).

The product of its digits is 71680, while the sum is 39.

The square root of 72154884 is about 8494.4030985114. The cubic root of 72154884 is about 416.3148580951.

The spelling of 72154884 in words is "seventy-two million, one hundred fifty-four thousand, eight hundred eighty-four".