256303438 has 8 divisors (see below), whose sum is σ = 389721888. Its totient is φ = 126396144.

The previous prime is 256303429. The next prime is 256303451. The reversal of 256303438 is 834303652.

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

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 877606 + ... + 877897.

It is an arithmetic number, because the mean of its divisors is an integer number (48715236).

Almost surely, 2^256303438 is an apocalyptic number.

256303438 is a deficient number, since it is larger than the sum of its proper divisors (133418450).

256303438 is a wasteful number, since it uses less digits than its factorization.

256303438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755578.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 256303438 is about 16009.4796292697. The cubic root of 256303438 is about 635.2111955862.

The spelling of 256303438 in words is "two hundred fifty-six million, three hundred three thousand, four hundred thirty-eight".