456728678 has 8 divisors (see below), whose sum is σ = 782963472. Its totient is φ = 195740856.

The previous prime is 456728659. The next prime is 456728737. The reversal of 456728678 is 876827654.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16311725 + ... + 16311752.

It is an arithmetic number, because the mean of its divisors is an integer number (97870434).

Almost surely, 2^456728678 is an apocalyptic number.

456728678 is a deficient number, since it is larger than the sum of its proper divisors (326234794).

456728678 is a wasteful number, since it uses less digits than its factorization.

456728678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32623486.

The product of its digits is 4515840, while the sum is 53.

The square root of 456728678 is about 21371.2114303331. The cubic root of 456728678 is about 770.1099960925.

The spelling of 456728678 in words is "four hundred fifty-six million, seven hundred twenty-eight thousand, six hundred seventy-eight".