256033234 has 4 divisors (see below), whose sum is σ = 384049854. Its totient is φ = 128016616.

The previous prime is 256033231. The next prime is 256033237. The reversal of 256033234 is 432330652.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (256033231) and next prime (256033237).

It can be written as a sum of positive squares in only one way, i.e., 182331009 + 73702225 = 13503^2 + 8585^2 .

It is not an unprimeable number, because it can be changed into a prime (256033231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64008307 + ... + 64008310.

Almost surely, 2^256033234 is an apocalyptic number.

256033234 is a deficient number, since it is larger than the sum of its proper divisors (128016620).

256033234 is a wasteful number, since it uses less digits than its factorization.

256033234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128016619.

The product of its (nonzero) digits is 12960, while the sum is 28.

The square root of 256033234 is about 16001.0385287956. The cubic root of 256033234 is about 634.9878965184.

Adding to 256033234 its reverse (432330652), we get a palindrome (688363886).

The spelling of 256033234 in words is "two hundred fifty-six million, thirty-three thousand, two hundred thirty-four".