78464942 has 8 divisors (see below), whose sum is σ = 117744600. Its totient is φ = 39216744.

The previous prime is 78464941. The next prime is 78464951. The reversal of 78464942 is 24946487.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 78464893 and 78464902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78464941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92 + ... + 12527.

It is an arithmetic number, because the mean of its divisors is an integer number (14718075).

Almost surely, 2^78464942 is an apocalyptic number.

78464942 is a deficient number, since it is larger than the sum of its proper divisors (39279658).

78464942 is a wasteful number, since it uses less digits than its factorization.

78464942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15730.

The product of its digits is 387072, while the sum is 44.

The square root of 78464942 is about 8858.0439149961. The cubic root of 78464942 is about 428.1131349972.

The spelling of 78464942 in words is "seventy-eight million, four hundred sixty-four thousand, nine hundred forty-two".