78187360 has 48 divisors (see below), whose sum is σ = 187769232. Its totient is φ = 30758400.

The previous prime is 78187357. The next prime is 78187391. The reversal of 78187360 is 6378187.

It is a super-2 number, since 2×78187360² = 12226526527539200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5755 + ... + 13765.

It is an arithmetic number, because the mean of its divisors is an integer number (3911859).

Almost surely, 2^78187360 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 78187360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93884616).

78187360 is an abundant number, since it is smaller than the sum of its proper divisors (109581872).

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

78187360 is a wasteful number, since it uses less digits than its factorization.

78187360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8087 (or 8079 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 78187360 is about 8842.3616754801. The cubic root of 78187360 is about 427.6076994591.

The spelling of 78187360 in words is "seventy-eight million, one hundred eighty-seven thousand, three hundred sixty".