78101424 has 30 divisors (see below), whose sum is σ = 218575916. Its totient is φ = 26033760.

The previous prime is 78101389. The next prime is 78101447. The reversal of 78101424 is 42410187.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 271042 + ... + 271329.

Almost surely, 2^78101424 is an apocalyptic number.

It is an amenable number.

78101424 is an abundant number, since it is smaller than the sum of its proper divisors (140474492).

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

78101424 is a wasteful number, since it uses less digits than its factorization.

78101424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542385 (or 542376 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 78101424 is about 8837.5010042432. The cubic root of 78101424 is about 427.4509803237.

The spelling of 78101424 in words is "seventy-eight million, one hundred one thousand, four hundred twenty-four".