72607450 has 12 divisors (see below), whose sum is σ = 135049950. Its totient is φ = 29042960.

The previous prime is 72607429. The next prime is 72607453. The reversal of 72607450 is 5470627.

It can be written as a sum of positive squares in 3 ways, for example, as 66928761 + 5678689 = 8181^2 + 2383^2 .

It is not an unprimeable number, because it can be changed into a prime (72607453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 726025 + ... + 726124.

Almost surely, 2^72607450 is an apocalyptic number.

72607450 is a deficient number, since it is larger than the sum of its proper divisors (62442500).

72607450 is a wasteful number, since it uses less digits than its factorization.

72607450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1452161 (or 1452156 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 72607450 is about 8521.0005281070. Note that the first 3 decimals coincide. The cubic root of 72607450 is about 417.1834405801.

The spelling of 72607450 in words is "seventy-two million, six hundred seven thousand, four hundred fifty".