72500490 has 48 divisors (see below), whose sum is σ = 190015488. Its totient is φ = 19178208.

The previous prime is 72500473. The next prime is 72500521. The reversal of 72500490 is 9400527.

72500490 is a `hidden beast` number, since 72 + 500 + 4 + 90 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8259 + ... + 14601.

It is an arithmetic number, because the mean of its divisors is an integer number (3958656).

Almost surely, 2^72500490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72500490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95007744).

72500490 is an abundant number, since it is smaller than the sum of its proper divisors (117514998).

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

72500490 is a wasteful number, since it uses less digits than its factorization.

72500490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6483 (or 6480 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 72500490 is about 8514.7219567053. The cubic root of 72500490 is about 416.9784851657.

The spelling of 72500490 in words is "seventy-two million, five hundred thousand, four hundred ninety".