20261896 has 16 divisors (see below), whose sum is σ = 39643200. Its totient is φ = 9690384.

The previous prime is 20261881. The next prime is 20261897. The reversal of 20261896 is 69816202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20261897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54876 + ... + 55243.

It is an arithmetic number, because the mean of its divisors is an integer number (2477700).

Almost surely, 2^20261896 is an apocalyptic number.

It is an amenable number.

20261896 is a deficient number, since it is larger than the sum of its proper divisors (19381304).

20261896 is a wasteful number, since it uses less digits than its factorization.

20261896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110148 (or 110144 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 20261896 is about 4501.3215837129. The cubic root of 20261896 is about 272.6214524681.

The spelling of 20261896 in words is "twenty million, two hundred sixty-one thousand, eight hundred ninety-six".