256464335 has 8 divisors (see below), whose sum is σ = 310745760. Its totient is φ = 203179104.

The previous prime is 256464311. The next prime is 256464347. The reversal of 256464335 is 533464652.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 256464335 - 2¹⁴ = 256447951 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248480 + ... + 249509.

It is an arithmetic number, because the mean of its divisors is an integer number (38843220).

Almost surely, 2^256464335 is an apocalyptic number.

256464335 is a deficient number, since it is larger than the sum of its proper divisors (54281425).

256464335 is a wasteful number, since it uses less digits than its factorization.

256464335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498097.

The product of its digits is 259200, while the sum is 38.

The square root of 256464335 is about 16014.5038949073. The cubic root of 256464335 is about 635.3440878038.

The spelling of 256464335 in words is "two hundred fifty-six million, four hundred sixty-four thousand, three hundred thirty-five".