72070120 has 32 divisors (see below), whose sum is σ = 164217600. Its totient is φ = 28461888.

The previous prime is 72070111. The next prime is 72070147. The reversal of 72070120 is 2107027.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8244 + ... + 14563.

It is an arithmetic number, because the mean of its divisors is an integer number (5131800).

Almost surely, 2^72070120 is an apocalyptic number.

It is an amenable number.

72070120 is an abundant number, since it is smaller than the sum of its proper divisors (92147480).

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

72070120 is a wasteful number, since it uses less digits than its factorization.

72070120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22897 (or 22893 counting only the distinct ones).

The product of its (nonzero) digits is 196, while the sum is 19.

The square root of 72070120 is about 8489.4122293596. The cubic root of 72070120 is about 416.1517721606.

Adding to 72070120 its reverse (2107027), we get a palindrome (74177147).

The spelling of 72070120 in words is "seventy-two million, seventy thousand, one hundred twenty".