72220060 has 48 divisors (see below), whose sum is σ = 166878432. Its totient is φ = 26252160.

The previous prime is 72220051. The next prime is 72220117. The reversal of 72220060 is 6002227.

It is a happy number.

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, 25264 + ... + 27976.

It is an arithmetic number, because the mean of its divisors is an integer number (3476634).

Almost surely, 2^72220060 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72220060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83439216).

72220060 is an abundant number, since it is smaller than the sum of its proper divisors (94658372).

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

72220060 is a wasteful number, since it uses less digits than its factorization.

72220060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2755 (or 2731 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 72220060 is about 8498.2386410362. The cubic root of 72220060 is about 416.4401698782.

Adding to 72220060 its reverse (6002227), we get a palindrome (78222287).

The spelling of 72220060 in words is "seventy-two million, two hundred twenty thousand, sixty".