78013332 has 36 divisors (see below), whose sum is σ = 205776480. Its totient is φ = 24873552.

The previous prime is 78013321. The next prime is 78013337. The reversal of 78013332 is 23331087.

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

It is a junction number, because it is equal to n+sod(n) for n = 78013296 and 78013305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78013337) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46282 + ... + 47937.

Almost surely, 2^78013332 is an apocalyptic number.

It is an amenable number.

78013332 is an abundant number, since it is smaller than the sum of its proper divisors (127763148).

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

78013332 is a wasteful number, since it uses less digits than its factorization.

78013332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94252 (or 94247 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 78013332 is about 8832.5156099494. The cubic root of 78013332 is about 427.2902099819.

The spelling of 78013332 in words is "seventy-eight million, thirteen thousand, three hundred thirty-two".