78037344 has 480 divisors, whose sum is σ = 316141056. Its totient is φ = 18247680.

The previous prime is 78037339. The next prime is 78037363. The reversal of 78037344 is 44373087.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 78037299 and 78037308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3392917 + ... + 3392939.

Almost surely, 2^78037344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78037344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158070528).

78037344 is an abundant number, since it is smaller than the sum of its proper divisors (238103712).

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

78037344 is a wasteful number, since it uses less digits than its factorization.

78037344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 78037344 is about 8833.8748010146. The cubic root of 78037344 is about 427.3340445410.

The spelling of 78037344 in words is "seventy-eight million, thirty-seven thousand, three hundred forty-four".