78382072 has 16 divisors (see below), whose sum is σ = 149376600. Its totient is φ = 38548320.

The previous prime is 78382061. The next prime is 78382081. The reversal of 78382072 is 27028387.

It is a super-2 number, since 2×78382072² = 12287498422026368, which contains 22 as substring.

It is a congruent number.

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, 79822 + ... + 80797.

Almost surely, 2^78382072 is an apocalyptic number.

It is an amenable number.

78382072 is a deficient number, since it is larger than the sum of its proper divisors (70994528).

78382072 is a wasteful number, since it uses less digits than its factorization.

78382072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160686 (or 160682 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 78382072 is about 8853.3650099835. The cubic root of 78382072 is about 427.9623660391.

The spelling of 78382072 in words is "seventy-eight million, three hundred eighty-two thousand, seventy-two".