78368152 has 16 divisors (see below), whose sum is σ = 147574440. Its totient is φ = 39014976.

The previous prime is 78368131. The next prime is 78368159. The reversal of 78368152 is 25186387.

It is a super-2 number, since 2×78368152² = 12283134495790208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78368159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19158 + ... + 22885.

Almost surely, 2^78368152 is an apocalyptic number.

It is an amenable number.

78368152 is a deficient number, since it is larger than the sum of its proper divisors (69206288).

78368152 is a wasteful number, since it uses less digits than its factorization.

78368152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42282 (or 42278 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 78368152 is about 8852.5788333118. The cubic root of 78368152 is about 427.9370303610.

The spelling of 78368152 in words is "seventy-eight million, three hundred sixty-eight thousand, one hundred fifty-two".