78313260 has 48 divisors (see below), whose sum is σ = 219744000. Its totient is φ = 20839104.

The previous prime is 78313243. The next prime is 78313267. The reversal of 78313260 is 6231387.

It is a super-2 number, since 2×78313260² = 12265933383655200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (78313267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34851 + ... + 37029.

It is an arithmetic number, because the mean of its divisors is an integer number (4578000).

Almost surely, 2^78313260 is an apocalyptic number.

It is an amenable number.

78313260 is an abundant number, since it is smaller than the sum of its proper divisors (141430740).

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

78313260 is a wasteful number, since it uses less digits than its factorization.

78313260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2790 (or 2788 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 78313260 is about 8849.4779507042. The cubic root of 78313260 is about 427.8370926291.

The spelling of 78313260 in words is "seventy-eight million, three hundred thirteen thousand, two hundred sixty".