78280932 has 24 divisors (see below), whose sum is σ = 183103200. Its totient is φ = 26029696.

The previous prime is 78280919. The next prime is 78280949. The reversal of 78280932 is 23908287.

It is a super-2 number, since 2×78280932² = 12255808629577248, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2757 + ... + 12812.

It is an arithmetic number, because the mean of its divisors is an integer number (7629300).

Almost surely, 2^78280932 is an apocalyptic number.

It is an amenable number.

78280932 is an abundant number, since it is smaller than the sum of its proper divisors (104822268).

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

78280932 is a wasteful number, since it uses less digits than its factorization.

78280932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15995 (or 15993 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 78280932 is about 8847.6512137403. The cubic root of 78280932 is about 427.7782136212.

The spelling of 78280932 in words is "seventy-eight million, two hundred eighty thousand, nine hundred thirty-two".