72582690 has 32 divisors (see below), whose sum is σ = 184446720. Its totient is φ = 18216704.

The previous prime is 72582689. The next prime is 72582721. The reversal of 72582690 is 9628527.

It is a happy number.

It is a super-2 number, since 2×72582690² = 10536493775272200, 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, 70650 + ... + 71669.

It is an arithmetic number, because the mean of its divisors is an integer number (5763960).

Almost surely, 2^72582690 is an apocalyptic number.

72582690 is an abundant number, since it is smaller than the sum of its proper divisors (111864030).

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

72582690 is a wasteful number, since it uses less digits than its factorization.

72582690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142346.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 72582690 is about 8519.5475231963. The cubic root of 72582690 is about 417.1360136914.

The spelling of 72582690 in words is "seventy-two million, five hundred eighty-two thousand, six hundred ninety".