256045430 has 32 divisors (see below), whose sum is σ = 496447488. Its totient is φ = 94802400.

The previous prime is 256045423. The next prime is 256045441. The reversal of 256045430 is 34540652.

It is a junction number, because it is equal to n+sod(n) for n = 256045393 and 256045402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10826 + ... + 25085.

It is an arithmetic number, because the mean of its divisors is an integer number (15513984).

Almost surely, 2^256045430 is an apocalyptic number.

256045430 is a deficient number, since it is larger than the sum of its proper divisors (240402058).

256045430 is a wasteful number, since it uses less digits than its factorization.

256045430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35972.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 256045430 is about 16001.4196245208. The cubic root of 256045430 is about 634.9979787895.

The spelling of 256045430 in words is "two hundred fifty-six million, forty-five thousand, four hundred thirty".