72532230 has 16 divisors (see below), whose sum is σ = 174077424. Its totient is φ = 19341920.

The previous prime is 72532199. The next prime is 72532231. The reversal of 72532230 is 3223527.

It is a super-3 number, since 3×72532230³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72532230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72532231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1208841 + ... + 1208900.

It is an arithmetic number, because the mean of its divisors is an integer number (10879839).

Almost surely, 2^72532230 is an apocalyptic number.

72532230 is an abundant number, since it is smaller than the sum of its proper divisors (101545194).

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

72532230 is a wasteful number, since it uses less digits than its factorization.

72532230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2417751.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 72532230 is about 8516.5855834366. The cubic root of 72532230 is about 417.0393259785.

Adding to 72532230 its reverse (3223527), we get a palindrome (75755757).

The spelling of 72532230 in words is "seventy-two million, five hundred thirty-two thousand, two hundred thirty".