256945462 has 4 divisors (see below), whose sum is σ = 385418196. Its totient is φ = 128472730.

The previous prime is 256945457. The next prime is 256945499. The reversal of 256945462 is 264549652.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64236364 + ... + 64236367.

It is an arithmetic number, because the mean of its divisors is an integer number (96354549).

Almost surely, 2^256945462 is an apocalyptic number.

256945462 is a deficient number, since it is larger than the sum of its proper divisors (128472734).

256945462 is a wasteful number, since it uses less digits than its factorization.

256945462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128472733.

The product of its digits is 518400, while the sum is 43.

The square root of 256945462 is about 16029.5184581446. The cubic root of 256945462 is about 635.7411413763.

The spelling of 256945462 in words is "two hundred fifty-six million, nine hundred forty-five thousand, four hundred sixty-two".