72500390 has 32 divisors (see below), whose sum is σ = 141095520. Its totient is φ = 26728704.

The previous prime is 72500387. The next prime is 72500401. The reversal of 72500390 is 9300527.

It is a congruent number.

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, 1874 + ... + 12186.

It is an arithmetic number, because the mean of its divisors is an integer number (4409235).

Almost surely, 2^72500390 is an apocalyptic number.

72500390 is a deficient number, since it is larger than the sum of its proper divisors (68595130).

72500390 is a wasteful number, since it uses less digits than its factorization.

72500390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10376.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 72500390 is about 8514.7160845210. The cubic root of 72500390 is about 416.9782934527.

The spelling of 72500390 in words is "seventy-two million, five hundred thousand, three hundred ninety".