256346398 has 32 divisors (see below), whose sum is σ = 481459968. Its totient is φ = 99446400.

The previous prime is 256346393. The next prime is 256346401. The reversal of 256346398 is 893643652.

It is a happy number.

256346398 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256346393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33661 + ... + 40567.

It is an arithmetic number, because the mean of its divisors is an integer number (15045624).

Almost surely, 2^256346398 is an apocalyptic number.

256346398 is a deficient number, since it is larger than the sum of its proper divisors (225113570).

256346398 is a wasteful number, since it uses less digits than its factorization.

256346398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7168.

The product of its digits is 933120, while the sum is 46.

The square root of 256346398 is about 16010.8212781231. The cubic root of 256346398 is about 635.2466836633.

The spelling of 256346398 in words is "two hundred fifty-six million, three hundred forty-six thousand, three hundred ninety-eight".