256261084 has 12 divisors (see below), whose sum is σ = 450319408. Its totient is φ = 127598400.

The previous prime is 256261073. The next prime is 256261121. The reversal of 256261084 is 480162652.

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 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 3 ways as a sum of consecutive naturals, for example, 131952 + ... + 133879.

Almost surely, 2^256261084 is an apocalyptic number.

It is an amenable number.

256261084 is a deficient number, since it is larger than the sum of its proper divisors (194058324).

256261084 is a wasteful number, since it uses less digits than its factorization.

256261084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266076 (or 266074 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 256261084 is about 16008.1567958338. The cubic root of 256261084 is about 635.1762042269.

The spelling of 256261084 in words is "two hundred fifty-six million, two hundred sixty-one thousand, eighty-four".