20896572 has 12 divisors (see below), whose sum is σ = 48758696. Its totient is φ = 6965520.

The previous prime is 20896571. The next prime is 20896591. The reversal of 20896572 is 27569802.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 20896572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20896571) 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, 870679 + ... + 870702.

Almost surely, 2^20896572 is an apocalyptic number.

It is an amenable number.

20896572 is an abundant number, since it is smaller than the sum of its proper divisors (27862124).

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

20896572 is a wasteful number, since it uses less digits than its factorization.

20896572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741388 (or 1741386 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 20896572 is about 4571.2768456964. The cubic root of 20896572 is about 275.4387354811.

The spelling of 20896572 in words is "twenty million, eight hundred ninety-six thousand, five hundred seventy-two".