78359460 has 72 divisors (see below), whose sum is σ = 233123520. Its totient is φ = 19662336.

The previous prime is 78359453. The next prime is 78359471. The reversal of 78359460 is 6495387.

It is a happy number.

78359460 is nontrivially palindromic in base 16.

It is a super-2 number, since 2×78359460² = 12280409942983200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15081 + ... + 19599.

Almost surely, 2^78359460 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 78359460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116561760).

78359460 is an abundant number, since it is smaller than the sum of its proper divisors (154764060).

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

78359460 is a wasteful number, since it uses less digits than its factorization.

78359460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4565 (or 4546 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 78359460 is about 8852.0878893061. The cubic root of 78359460 is about 427.9212086014.

The spelling of 78359460 in words is "seventy-eight million, three hundred fifty-nine thousand, four hundred sixty".