78880344 has 32 divisors (see below), whose sum is σ = 199422000. Its totient is φ = 25997312.

The previous prime is 78880339. The next prime is 78880349. The reversal of 78880344 is 44308887.

It is an interprime number because it is at equal distance from previous prime (78880339) and next prime (78880349).

It is a junction number, because it is equal to n+sod(n) for n = 78880296 and 78880305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78880349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16329 + ... + 20600.

Almost surely, 2^78880344 is an apocalyptic number.

It is an amenable number.

78880344 is an abundant number, since it is smaller than the sum of its proper divisors (120541656).

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

78880344 is a wasteful number, since it uses less digits than its factorization.

78880344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37027 (or 37023 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 42.

The square root of 78880344 is about 8881.4606906747. The cubic root of 78880344 is about 428.8672982987.

The spelling of 78880344 in words is "seventy-eight million, eight hundred eighty thousand, three hundred forty-four".