72433620 has 72 divisors (see below), whose sum is σ = 251107584. Its totient is φ = 16555968.

The previous prime is 72433609. The next prime is 72433631. The reversal of 72433620 is 2633427.

72433620 is a `hidden beast` number, since 7 + 2 + 4 + 33 + 620 = 666.

It is an interprime number because it is at equal distance from previous prime (72433609) and next prime (72433631).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27484 + ... + 30003.

Almost surely, 2^72433620 is an apocalyptic number.

72433620 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

72433620 is an abundant number, since it is smaller than the sum of its proper divisors (178673964).

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

72433620 is a wasteful number, since it uses less digits than its factorization.

72433620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57509 (or 57504 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 72433620 is about 8510.7943225060. The cubic root of 72433620 is about 416.8502472815.

The spelling of 72433620 in words is "seventy-two million, four hundred thirty-three thousand, six hundred twenty".