72223260 has 48 divisors (see below), whose sum is σ = 207697056. Its totient is φ = 18738432.

The previous prime is 72223231. The next prime is 72223267. The reversal of 72223260 is 6232227.

It is a self number, because there is not a number n which added to its sum of digits gives 72223260.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72223267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14047 + ... + 18486.

It is an arithmetic number, because the mean of its divisors is an integer number (4327022).

Almost surely, 2^72223260 is an apocalyptic number.

It is an amenable number.

72223260 is an abundant number, since it is smaller than the sum of its proper divisors (135473796).

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

72223260 is a wasteful number, since it uses less digits than its factorization.

72223260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32582 (or 32580 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 72223260 is about 8498.4269132587. The cubic root of 72223260 is about 416.4463204724.

Adding to 72223260 its reverse (6232227), we get a palindrome (78455487).

The spelling of 72223260 in words is "seventy-two million, two hundred twenty-three thousand, two hundred sixty".