80628400 has 90 divisors (see below), whose sum is σ = 205903860. Its totient is φ = 30257280.

The previous prime is 80628391. The next prime is 80628407. The reversal of 80628400 is 482608.

It is not an unprimeable number, because it can be changed into a prime (80628407) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 782749 + ... + 782851.

Almost surely, 2^80628400 is an apocalyptic number.

80628400 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80628400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102951930).

80628400 is an abundant number, since it is smaller than the sum of its proper divisors (125275460).

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

80628400 is a wasteful number, since it uses less digits than its factorization.

80628400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 80628400 is about 8979.3318236938. The cubic root of 80628400 is about 432.0122024445.

The spelling of 80628400 in words is "eighty million, six hundred twenty-eight thousand, four hundred".