72504458 has 8 divisors (see below), whose sum is σ = 117122628. Its totient is φ = 33463584.

The previous prime is 72504457. The next prime is 72504461. The reversal of 72504458 is 85440527.

It can be written as a sum of positive squares in 2 ways, for example, as 71961289 + 543169 = 8483^2 + 737^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (72504457) 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, 1394291 + ... + 1394342.

Almost surely, 2^72504458 is an apocalyptic number.

72504458 is a deficient number, since it is larger than the sum of its proper divisors (44618170).

72504458 is a wasteful number, since it uses less digits than its factorization.

72504458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2788648.

The product of its (nonzero) digits is 44800, while the sum is 35.

The square root of 72504458 is about 8514.9549617130. The cubic root of 72504458 is about 416.9860921968.

The spelling of 72504458 in words is "seventy-two million, five hundred four thousand, four hundred fifty-eight".