20914896 has 120 divisors (see below), whose sum is σ = 61228224. Its totient is φ = 6128640.

The previous prime is 20914891. The next prime is 20914903. The reversal of 20914896 is 69841902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20914891) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 294541 + ... + 294611.

Almost surely, 2^20914896 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 20914896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30614112).

20914896 is an abundant number, since it is smaller than the sum of its proper divisors (40313328).

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

20914896 is a wasteful number, since it uses less digits than its factorization.

20914896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 20914896 is about 4573.2806605324. The cubic root of 20914896 is about 275.5192218059.

The spelling of 20914896 in words is "twenty million, nine hundred fourteen thousand, eight hundred ninety-six".