78463442 has 16 divisors (see below), whose sum is σ = 123379200. Its totient is φ = 37352832.

The previous prime is 78463423. The next prime is 78463481. The reversal of 78463442 is 24436487.

It is a junction number, because it is equal to n+sod(n) for n = 78463396 and 78463405.

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, 6434 + ... + 14082.

It is an arithmetic number, because the mean of its divisors is an integer number (7711200).

Almost surely, 2^78463442 is an apocalyptic number.

78463442 is a deficient number, since it is larger than the sum of its proper divisors (44915758).

78463442 is a wasteful number, since it uses less digits than its factorization.

78463442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7897.

The product of its digits is 129024, while the sum is 38.

The square root of 78463442 is about 8857.9592457857. The cubic root of 78463442 is about 428.1104069262.

The spelling of 78463442 in words is "seventy-eight million, four hundred sixty-three thousand, four hundred forty-two".