256233436 has 24 divisors (see below), whose sum is σ = 471771216. Its totient is φ = 121610880.

The previous prime is 256233433. The next prime is 256233437. The reversal of 256233436 is 634332652.

256233436 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256233433) 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, 15046 + ... + 27181.

It is an arithmetic number, because the mean of its divisors is an integer number (19657134).

Almost surely, 2^256233436 is an apocalyptic number.

It is an amenable number.

256233436 is a deficient number, since it is larger than the sum of its proper divisors (215537780).

256233436 is a wasteful number, since it uses less digits than its factorization.

256233436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42309 (or 42307 counting only the distinct ones).

The product of its digits is 77760, while the sum is 34.

The square root of 256233436 is about 16007.2932127827. The cubic root of 256233436 is about 635.1533603587.

The spelling of 256233436 in words is "two hundred fifty-six million, two hundred thirty-three thousand, four hundred thirty-six".