80120620 has 24 divisors (see below), whose sum is σ = 174056400. Its totient is φ = 30942912.

The previous prime is 80120611. The next prime is 80120627. The reversal of 80120620 is 2602108.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (80120627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68490 + ... + 69649.

It is an arithmetic number, because the mean of its divisors is an integer number (7252350).

Almost surely, 2^80120620 is an apocalyptic number.

It is an amenable number.

80120620 is an abundant number, since it is smaller than the sum of its proper divisors (93935780).

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

80120620 is a wasteful number, since it uses less digits than its factorization.

80120620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138177 (or 138175 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 80120620 is about 8951.0122332617. The cubic root of 80120620 is about 431.1033858533.

Adding to 80120620 its reverse (2602108), we get a palindrome (82722728).

The spelling of 80120620 in words is "eighty million, one hundred twenty thousand, six hundred twenty".