72250890 has 32 divisors (see below), whose sum is σ = 179383680. Its totient is φ = 18602304.

The previous prime is 72250883. The next prime is 72250909. The reversal of 72250890 is 9805227.

It is a super-2 number, since 2×72250890² = 10440382211584200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40654 + ... + 42393.

It is an arithmetic number, because the mean of its divisors is an integer number (5605740).

Almost surely, 2^72250890 is an apocalyptic number.

72250890 is an abundant number, since it is smaller than the sum of its proper divisors (107132790).

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

72250890 is a wasteful number, since it uses less digits than its factorization.

72250890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83086.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 72250890 is about 8500.0523527800. The cubic root of 72250890 is about 416.4994194548.

The spelling of 72250890 in words is "seventy-two million, two hundred fifty thousand, eight hundred ninety".