256226046 has 16 divisors (see below), whose sum is σ = 523355904. Its totient is φ = 83591384.

The previous prime is 256226029. The next prime is 256226051. The reversal of 256226046 is 640622652.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 256225998 and 256226016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 454020 + ... + 454583.

It is an arithmetic number, because the mean of its divisors is an integer number (32709744).

Almost surely, 2^256226046 is an apocalyptic number.

256226046 is an abundant number, since it is smaller than the sum of its proper divisors (267129858).

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

256226046 is a wasteful number, since it uses less digits than its factorization.

256226046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908655.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 256226046 is about 16007.0623788377. The cubic root of 256226046 is about 635.1472541709.

Adding to 256226046 its reverse (640622652), we get a palindrome (896848698).

The spelling of 256226046 in words is "two hundred fifty-six million, two hundred twenty-six thousand, forty-six".