80538912 has 36 divisors (see below), whose sum is σ = 229033350. Its totient is φ = 26846208.

The previous prime is 80538881. The next prime is 80538943. The reversal of 80538912 is 21983508.

It is an interprime number because it is at equal distance from previous prime (80538881) and next prime (80538943).

It can be written as a sum of positive squares in only one way, i.e., 78216336 + 2322576 = 8844^2 + 1524^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×80538912² = 12973032692287488, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 139537 + ... + 140112.

Almost surely, 2^80538912 is an apocalyptic number.

It is an amenable number.

80538912 is an abundant number, since it is smaller than the sum of its proper divisors (148494438).

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

80538912 is a wasteful number, since it uses less digits than its factorization.

80538912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279665 (or 279654 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 80538912 is about 8974.3474414578. The cubic root of 80538912 is about 431.8523157733.

The spelling of 80538912 in words is "eighty million, five hundred thirty-eight thousand, nine hundred twelve".