256376146 has 16 divisors (see below), whose sum is σ = 419822424. Its totient is φ = 116705664.

The previous prime is 256376137. The next prime is 256376149. The reversal of 256376146 is 641673652.

It can be written as a sum of positive squares in 4 ways, for example, as 147987225 + 108388921 = 12165^2 + 10411^2 .

It is a junction number, because it is equal to n+sod(n) for n = 256376099 and 256376108.

It is not an unprimeable number, because it can be changed into a prime (256376149) 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, 65641 + ... + 69436.

Almost surely, 2^256376146 is an apocalyptic number.

256376146 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

256376146 is a deficient number, since it is larger than the sum of its proper divisors (163446278).

256376146 is a wasteful number, since it uses less digits than its factorization.

256376146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135165.

The product of its digits is 181440, while the sum is 40.

The square root of 256376146 is about 16011.7502478648. The cubic root of 256376146 is about 635.2712553464.

The spelling of 256376146 in words is "two hundred fifty-six million, three hundred seventy-six thousand, one hundred forty-six".