20341256 has 32 divisors (see below), whose sum is σ = 41270040. Its totient is φ = 9343488.

The previous prime is 20341247. The next prime is 20341261. The reversal of 20341256 is 65214302.

It can be written as a sum of positive squares in 4 ways, for example, as 3118756 + 17222500 = 1766^2 + 4150^2 .

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, 32660 + ... + 33276.

Almost surely, 2^20341256 is an apocalyptic number.

20341256 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

20341256 is an abundant number, since it is smaller than the sum of its proper divisors (20928784).

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

20341256 is a wasteful number, since it uses less digits than its factorization.

20341256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953 (or 949 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 20341256 is about 4510.1281578243. The cubic root of 20341256 is about 272.9769153107.

Adding to 20341256 its reverse (65214302), we get a palindrome (85555558).

The spelling of 20341256 in words is "twenty million, three hundred forty-one thousand, two hundred fifty-six".