80920128 has 28 divisors (see below), whose sum is σ = 214101680. Its totient is φ = 26973312.

The previous prime is 80920117. The next prime is 80920139. The reversal of 80920128 is 82102908.

It is an interprime number because it is at equal distance from previous prime (80920117) and next prime (80920139).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 80920095 and 80920104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210538 + ... + 210921.

Almost surely, 2^80920128 is an apocalyptic number.

It is an amenable number.

80920128 is an abundant number, since it is smaller than the sum of its proper divisors (133181552).

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

80920128 is a wasteful number, since it uses less digits than its factorization.

80920128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421474 (or 421464 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 80920128 is about 8995.5615722422. The cubic root of 80920128 is about 432.5326078303.

The spelling of 80920128 in words is "eighty million, nine hundred twenty thousand, one hundred twenty-eight".