72150456 has 32 divisors (see below), whose sum is σ = 206144640. Its totient is φ = 20614368.

The previous prime is 72150409. The next prime is 72150457. The reversal of 72150456 is 65405127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72150457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214566 + ... + 214901.

It is an arithmetic number, because the mean of its divisors is an integer number (6442020).

Almost surely, 2^72150456 is an apocalyptic number.

It is an amenable number.

72150456 is an abundant number, since it is smaller than the sum of its proper divisors (133994184).

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

72150456 is a wasteful number, since it uses less digits than its factorization.

72150456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429483 (or 429479 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 72150456 is about 8494.1424523021. The cubic root of 72150456 is about 416.3063417860.

The spelling of 72150456 in words is "seventy-two million, one hundred fifty thousand, four hundred fifty-six".