256650234 has 16 divisors (see below), whose sum is σ = 513565920. Its totient is φ = 85505840.

The previous prime is 256650211. The next prime is 256650257. The reversal of 256650234 is 432056652.

It is an interprime number because it is at equal distance from previous prime (256650211) and next prime (256650257).

It is a super-2 number, since 2×256650234² = 131738685224509512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 256650195 and 256650204.

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, 2857 + ... + 22835.

It is an arithmetic number, because the mean of its divisors is an integer number (32097870).

Almost surely, 2^256650234 is an apocalyptic number.

256650234 is an abundant number, since it is smaller than the sum of its proper divisors (256915686).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256650234 is a wasteful number, since it uses less digits than its factorization.

256650234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22125.

The product of its (nonzero) digits is 43200, while the sum is 33.

The square root of 256650234 is about 16020.3069258988. The cubic root of 256650234 is about 635.4975611313.

The spelling of 256650234 in words is "two hundred fifty-six million, six hundred fifty thousand, two hundred thirty-four".