72207270 has 48 divisors (see below), whose sum is σ = 188212752. Its totient is φ = 19206720.

The previous prime is 72207257. The next prime is 72207287. The reversal of 72207270 is 7270227.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47949 + ... + 49431.

It is an arithmetic number, because the mean of its divisors is an integer number (3921099).

Almost surely, 2^72207270 is an apocalyptic number.

72207270 is an abundant number, since it is smaller than the sum of its proper divisors (116005482).

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

72207270 is a wasteful number, since it uses less digits than its factorization.

72207270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2037 (or 2034 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 27.

The square root of 72207270 is about 8497.4860988412. The cubic root of 72207270 is about 416.4155849072.

Adding to 72207270 its reverse (7270227), we get a palindrome (79477497).

The spelling of 72207270 in words is "seventy-two million, two hundred seven thousand, two hundred seventy".