256460222 has 8 divisors (see below), whose sum is σ = 384766200. Its totient is φ = 128204824.

The previous prime is 256460131. The next prime is 256460227. The reversal of 256460222 is 222064652.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256460227) 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, 4904 + ... + 23172.

It is an arithmetic number, because the mean of its divisors is an integer number (48095775).

Almost surely, 2^256460222 is an apocalyptic number.

256460222 is a deficient number, since it is larger than the sum of its proper divisors (128305978).

256460222 is a wasteful number, since it uses less digits than its factorization.

256460222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25290.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 256460222 is about 16014.3754795496. The cubic root of 256460222 is about 635.3406913807.

The spelling of 256460222 in words is "two hundred fifty-six million, four hundred sixty thousand, two hundred twenty-two".