78949360 has 80 divisors (see below), whose sum is σ = 222146496. Its totient is φ = 25473024.

The previous prime is 78949357. The next prime is 78949391. The reversal of 78949360 is 6394987.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 78949360.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5374 + ... + 13666.

Almost surely, 2^78949360 is an apocalyptic number.

78949360 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78949360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111073248).

78949360 is an abundant number, since it is smaller than the sum of its proper divisors (143197136).

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

78949360 is a wasteful number, since it uses less digits than its factorization.

78949360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8330 (or 8324 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 78949360 is about 8885.3452380873. The cubic root of 78949360 is about 428.9923403381.

The spelling of 78949360 in words is "seventy-eight million, nine hundred forty-nine thousand, three hundred sixty".