78513460 has 24 divisors (see below), whose sum is σ = 165715200. Its totient is φ = 31245984.

The previous prime is 78513443. The next prime is 78513473. The reversal of 78513460 is 6431587.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5884 + ... + 13843.

It is an arithmetic number, because the mean of its divisors is an integer number (6904800).

Almost surely, 2^78513460 is an apocalyptic number.

It is an amenable number.

78513460 is an abundant number, since it is smaller than the sum of its proper divisors (87201740).

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

78513460 is a wasteful number, since it uses less digits than its factorization.

78513460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19935 (or 19933 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 78513460 is about 8860.7821325208. The cubic root of 78513460 is about 428.2013566191.

It can be divided in two parts, 7851 and 3460, that added together give a palindrome (11311).

The spelling of 78513460 in words is "seventy-eight million, five hundred thirteen thousand, four hundred sixty".