20444956 has 18 divisors (see below), whose sum is σ = 41620488. Its totient is φ = 8762040.

The previous prime is 20444939. The next prime is 20444987. The reversal of 20444956 is 65944402.

It is a super-3 number, since 3×20444956³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51960 + ... + 52351.

Almost surely, 2^20444956 is an apocalyptic number.

It is an amenable number.

20444956 is an abundant number, since it is smaller than the sum of its proper divisors (21175532).

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

20444956 is a wasteful number, since it uses less digits than its factorization.

20444956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104329 (or 104320 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 20444956 is about 4521.6098902935. The cubic root of 20444956 is about 273.4400092570.

The spelling of 20444956 in words is "twenty million, four hundred forty-four thousand, nine hundred fifty-six".