20267896 has 32 divisors (see below), whose sum is σ = 41857200. Its totient is φ = 9123840.

The previous prime is 20267887. The next prime is 20267903. The reversal of 20267896 is 69876202.

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, 8536 + ... + 10648.

Almost surely, 2^20267896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20267896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20928600).

20267896 is an abundant number, since it is smaller than the sum of its proper divisors (21589304).

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

20267896 is a wasteful number, since it uses less digits than its factorization.

20267896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2239 (or 2235 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 20267896 is about 4501.9880053150. The cubic root of 20267896 is about 272.6483595796.

The spelling of 20267896 in words is "twenty million, two hundred sixty-seven thousand, eight hundred ninety-six".