256234415 has 4 divisors (see below), whose sum is σ = 307481304. Its totient is φ = 204987528.

The previous prime is 256234369. The next prime is 256234417. The reversal of 256234415 is 514432652.

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

It is a cyclic number.

It is not a de Polignac number, because 256234415 - 2⁶ = 256234351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256234417) 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, 25623437 + ... + 25623446.

It is an arithmetic number, because the mean of its divisors is an integer number (76870326).

Almost surely, 2^256234415 is an apocalyptic number.

256234415 is a deficient number, since it is larger than the sum of its proper divisors (51246889).

256234415 is an equidigital number, since it uses as much as digits as its factorization.

256234415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51246888.

The product of its digits is 28800, while the sum is 32.

The square root of 256234415 is about 16007.3237925645. The cubic root of 256234415 is about 635.1541692752.

The spelling of 256234415 in words is "two hundred fifty-six million, two hundred thirty-four thousand, four hundred fifteen".