72427932 has 30 divisors (see below), whose sum is σ = 189341768. Its totient is φ = 24142536.

The previous prime is 72427931. The next prime is 72427937. The reversal of 72427932 is 23972427.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72427931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 111448 + ... + 112095.

Almost surely, 2^72427932 is an apocalyptic number.

It is an amenable number.

72427932 is an abundant number, since it is smaller than the sum of its proper divisors (116913836).

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

72427932 is a wasteful number, since it uses less digits than its factorization.

72427932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223559 (or 223548 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 72427932 is about 8510.4601520717. The cubic root of 72427932 is about 416.8393356529.

The spelling of 72427932 in words is "seventy-two million, four hundred twenty-seven thousand, nine hundred thirty-two".