256370413 has 8 divisors (see below), whose sum is σ = 276243968. Its totient is φ = 236518704.

The previous prime is 256370407. The next prime is 256370431. The reversal of 256370413 is 314073652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 256370413 - 2¹³ = 256362221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256370453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25420 + ... + 34042.

It is an arithmetic number, because the mean of its divisors is an integer number (34530496).

Almost surely, 2^256370413 is an apocalyptic number.

It is an amenable number.

256370413 is a deficient number, since it is larger than the sum of its proper divisors (19873555).

256370413 is a wasteful number, since it uses less digits than its factorization.

256370413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10923.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 256370413 is about 16011.5712220881. The cubic root of 256370413 is about 635.2665200680.

The spelling of 256370413 in words is "two hundred fifty-six million, three hundred seventy thousand, four hundred thirteen".