78954942 has 16 divisors (see below), whose sum is σ = 172265472. Its totient is φ = 23925720.

The previous prime is 78954917. The next prime is 78954943. The reversal of 78954942 is 24945987.

It is a junction number, because it is equal to n+sod(n) for n = 78954891 and 78954900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78954943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 598078 + ... + 598209.

It is an arithmetic number, because the mean of its divisors is an integer number (10766592).

Almost surely, 2^78954942 is an apocalyptic number.

78954942 is an abundant number, since it is smaller than the sum of its proper divisors (93310530).

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

78954942 is a wasteful number, since it uses less digits than its factorization.

78954942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196303.

The product of its digits is 725760, while the sum is 48.

The square root of 78954942 is about 8885.6593452596. The cubic root of 78954942 is about 429.0024505269.

The spelling of 78954942 in words is "seventy-eight million, nine hundred fifty-four thousand, nine hundred forty-two".