80628420 has 48 divisors (see below), whose sum is σ = 226296000. Its totient is φ = 21449856.

The previous prime is 80628407. The next prime is 80628421. The reversal of 80628420 is 2482608.

It is a happy number.

It is a super-2 number, since 2×80628420² = 13001884223392800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (80628421) 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, 28594 + ... + 31286.

It is an arithmetic number, because the mean of its divisors is an integer number (4714500).

Almost surely, 2^80628420 is an apocalyptic number.

It is an amenable number.

80628420 is an abundant number, since it is smaller than the sum of its proper divisors (145667580).

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

80628420 is a wasteful number, since it uses less digits than its factorization.

80628420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3204 (or 3202 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 80628420 is about 8979.3329373623. The cubic root of 80628420 is about 432.0122381650.

The spelling of 80628420 in words is "eighty million, six hundred twenty-eight thousand, four hundred twenty".