72403248 has 20 divisors (see below), whose sum is σ = 187041848. Its totient is φ = 24134400.

The previous prime is 72403217. The next prime is 72403291. The reversal of 72403248 is 84230427.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 754153 + ... + 754248.

Almost surely, 2^72403248 is an apocalyptic number.

It is an amenable number.

72403248 is an abundant number, since it is smaller than the sum of its proper divisors (114638600).

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

72403248 is a wasteful number, since it uses less digits than its factorization.

72403248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508412 (or 1508406 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 72403248 is about 8509.0098131334. The cubic root of 72403248 is about 416.7919762480.

The spelling of 72403248 in words is "seventy-two million, four hundred three thousand, two hundred forty-eight".