78616340 has 24 divisors (see below), whose sum is σ = 180103392. Its totient is φ = 28587680.

The previous prime is 78616327. The next prime is 78616399. The reversal of 78616340 is 4361687.

It is a self number, because there is not a number n which added to its sum of digits gives 78616340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178454 + ... + 178893.

It is an arithmetic number, because the mean of its divisors is an integer number (7504308).

Almost surely, 2^78616340 is an apocalyptic number.

It is an amenable number.

78616340 is an abundant number, since it is smaller than the sum of its proper divisors (101487052).

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

78616340 is a wasteful number, since it uses less digits than its factorization.

78616340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357367 (or 357365 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 78616340 is about 8866.5855886017. The cubic root of 78616340 is about 428.3883059982.

The spelling of 78616340 in words is "seventy-eight million, six hundred sixteen thousand, three hundred forty".