78940674 has 24 divisors (see below), whose sum is σ = 171679872. Its totient is φ = 26214840.

The previous prime is 78940627. The next prime is 78940679. The reversal of 78940674 is 47604987.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (78940679) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3214 + ... + 12969.

It is an arithmetic number, because the mean of its divisors is an integer number (7153328).

Almost surely, 2^78940674 is an apocalyptic number.

78940674 is an abundant number, since it is smaller than the sum of its proper divisors (92739198).

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

78940674 is a wasteful number, since it uses less digits than its factorization.

78940674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16462 (or 16459 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The square root of 78940674 is about 8884.8564422843. The cubic root of 78940674 is about 428.9766071976.

The spelling of 78940674 in words is "seventy-eight million, nine hundred forty thousand, six hundred seventy-four".