72772260 has 48 divisors (see below), whose sum is σ = 222288192. Its totient is φ = 17641600.

The previous prime is 72772247. The next prime is 72772267. The reversal of 72772260 is 6227727.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (72772267) 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, 54471 + ... + 55790.

It is an arithmetic number, because the mean of its divisors is an integer number (4631004).

Almost surely, 2^72772260 is an apocalyptic number.

It is an amenable number.

72772260 is an abundant number, since it is smaller than the sum of its proper divisors (149515932).

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

72772260 is a wasteful number, since it uses less digits than its factorization.

72772260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110284 (or 110282 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 33.

The square root of 72772260 is about 8530.6658591226. The cubic root of 72772260 is about 417.4988537863.

Adding to 72772260 its reverse (6227727), we get a palindrome (78999987).

The spelling of 72772260 in words is "seventy-two million, seven hundred seventy-two thousand, two hundred sixty".