72655230 has 16 divisors (see below), whose sum is σ = 174372624. Its totient is φ = 19374720.

The previous prime is 72655217. The next prime is 72655243. The reversal of 72655230 is 3255627.

It is an interprime number because it is at equal distance from previous prime (72655217) and next prime (72655243).

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 2421841 = 72655230 / (7 + 2 + 6 + 5 + 5 + 2 + 3 + 0).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1210891 + ... + 1210950.

It is an arithmetic number, because the mean of its divisors is an integer number (10898289).

Almost surely, 2^72655230 is an apocalyptic number.

72655230 is an abundant number, since it is smaller than the sum of its proper divisors (101717394).

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

72655230 is a wasteful number, since it uses less digits than its factorization.

72655230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2421851.

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 72655230 is about 8523.8037283832. The cubic root of 72655230 is about 417.2749309805.

The spelling of 72655230 in words is "seventy-two million, six hundred fifty-five thousand, two hundred thirty".