72951456 has 24 divisors (see below), whose sum is σ = 191497824. Its totient is φ = 24317120.

The previous prime is 72951451. The next prime is 72951481. The reversal of 72951456 is 65415927.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (72951451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379860 + ... + 380051.

It is an arithmetic number, because the mean of its divisors is an integer number (7979076).

Almost surely, 2^72951456 is an apocalyptic number.

It is an amenable number.

72951456 is an abundant number, since it is smaller than the sum of its proper divisors (118546368).

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

72951456 is a wasteful number, since it uses less digits than its factorization.

72951456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759924 (or 759916 counting only the distinct ones).

The product of its digits is 75600, while the sum is 39.

The square root of 72951456 is about 8541.1624501586. The cubic root of 72951456 is about 417.8412589853.

The spelling of 72951456 in words is "seventy-two million, nine hundred fifty-one thousand, four hundred fifty-six".