80072120 has 32 divisors (see below), whose sum is σ = 181282320. Its totient is φ = 31829760.

The previous prime is 80072089. The next prime is 80072183. The reversal of 80072120 is 2127008.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 80072092 and 80072101.

It is a congruent number.

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, 380 + ... + 12660.

Almost surely, 2^80072120 is an apocalyptic number.

It is an amenable number.

80072120 is an abundant number, since it is smaller than the sum of its proper divisors (101210200).

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

80072120 is a wasteful number, since it uses less digits than its factorization.

80072120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12455 (or 12451 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 80072120 is about 8948.3026323432. The cubic root of 80072120 is about 431.0163806415.

Adding to 80072120 its reverse (2127008), we get a palindrome (82199128).

The spelling of 80072120 in words is "eighty million, seventy-two thousand, one hundred twenty".