78133080 has 32 divisors (see below), whose sum is σ = 234399600. Its totient is φ = 20835456.

The previous prime is 78133079. The next prime is 78133123. The reversal of 78133080 is 8033187.

It is a super-2 number, since 2×78133080² = 12209556380572800, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 325435 + ... + 325674.

Almost surely, 2^78133080 is an apocalyptic number.

It is an amenable number.

78133080 is an abundant number, since it is smaller than the sum of its proper divisors (156266520).

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

78133080 is a wasteful number, since it uses less digits than its factorization.

78133080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651123 (or 651119 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 78133080 is about 8839.2918268377. The cubic root of 78133080 is about 427.5087238738.

The spelling of 78133080 in words is "seventy-eight million, one hundred thirty-three thousand, eighty".