256030430 has 8 divisors (see below), whose sum is σ = 460854792. Its totient is φ = 102412168.

The previous prime is 256030409. The next prime is 256030451. The reversal of 256030430 is 34030652.

It is an interprime number because it is at equal distance from previous prime (256030409) and next prime (256030451).

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

It is a junction number, because it is equal to n+sod(n) for n = 256030396 and 256030405.

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, 12801512 + ... + 12801531.

It is an arithmetic number, because the mean of its divisors is an integer number (57606849).

Almost surely, 2^256030430 is an apocalyptic number.

256030430 is a deficient number, since it is larger than the sum of its proper divisors (204824362).

256030430 is a wasteful number, since it uses less digits than its factorization.

256030430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25603050.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 256030430 is about 16000.9509092429. The cubic root of 256030430 is about 634.9855784436.

The spelling of 256030430 in words is "two hundred fifty-six million, thirty thousand, four hundred thirty".