78995260 has 72 divisors (see below), whose sum is σ = 179484480. Its totient is φ = 29193216.

The previous prime is 78995201. The next prime is 78995261. The reversal of 78995260 is 6259987.

It is a super-2 number, since 2×78995260² = 12480502204935200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78995260.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78995261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 456534 + ... + 456706.

It is an arithmetic number, because the mean of its divisors is an integer number (2492840).

Almost surely, 2^78995260 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 78995260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89742240).

78995260 is an abundant number, since it is smaller than the sum of its proper divisors (100489220).

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

78995260 is a wasteful number, since it uses less digits than its factorization.

78995260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 78995260 is about 8887.9277674833. The cubic root of 78995260 is about 429.0754608501.

The spelling of 78995260 in words is "seventy-eight million, nine hundred ninety-five thousand, two hundred sixty".