256352423 has 8 divisors (see below), whose sum is σ = 265727616. Its totient is φ = 247046400.

The previous prime is 256352407. The next prime is 256352461. The reversal of 256352423 is 324253652.

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 256352423 - 2⁴ = 256352407 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 256352423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256352023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9686 + ... + 24627.

It is an arithmetic number, because the mean of its divisors is an integer number (33215952).

Almost surely, 2^256352423 is an apocalyptic number.

256352423 is a deficient number, since it is larger than the sum of its proper divisors (9375193).

256352423 is a wasteful number, since it uses less digits than its factorization.

256352423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34585.

The product of its digits is 43200, while the sum is 32.

The square root of 256352423 is about 16011.0094310134. The cubic root of 256352423 is about 635.2516604334.

The spelling of 256352423 in words is "two hundred fifty-six million, three hundred fifty-two thousand, four hundred twenty-three".