256415334 has 24 divisors (see below), whose sum is σ = 596558808. Its totient is φ = 73261440.

The previous prime is 256415333. The next prime is 256415351. The reversal of 256415334 is 433514652.

256415334 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 256415295 and 256415304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256415333) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 435787 + ... + 436374.

It is an arithmetic number, because the mean of its divisors is an integer number (24856617).

Almost surely, 2^256415334 is an apocalyptic number.

256415334 is an abundant number, since it is smaller than the sum of its proper divisors (340143474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256415334 is a wasteful number, since it uses less digits than its factorization.

256415334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872180 (or 872173 counting only the distinct ones).

The product of its digits is 43200, while the sum is 33.

The square root of 256415334 is about 16012.9739274127. The cubic root of 256415334 is about 635.3036215162.

Adding to 256415334 its reverse (433514652), we get a palindrome (689929986).

The spelling of 256415334 in words is "two hundred fifty-six million, four hundred fifteen thousand, three hundred thirty-four".