72929428 has 48 divisors (see below), whose sum is σ = 152550720. Its totient is φ = 30067200.

The previous prime is 72929411. The next prime is 72929443. The reversal of 72929428 is 82492927.

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, 32668 + ... + 34828.

It is an arithmetic number, because the mean of its divisors is an integer number (3178140).

Almost surely, 2^72929428 is an apocalyptic number.

It is an amenable number.

72929428 is an abundant number, since it is smaller than the sum of its proper divisors (79621292).

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

72929428 is a wasteful number, since it uses less digits than its factorization.

72929428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2248 (or 2246 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 72929428 is about 8539.8728327768. The cubic root of 72929428 is about 417.7991984410.

The spelling of 72929428 in words is "seventy-two million, nine hundred twenty-nine thousand, four hundred twenty-eight".