20940882 has 16 divisors (see below), whose sum is σ = 42472512. Its totient is φ = 6881840.

The previous prime is 20940877. The next prime is 20940901. The reversal of 20940882 is 28804902.

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, 24153 + ... + 25004.

It is an arithmetic number, because the mean of its divisors is an integer number (2654532).

Almost surely, 2^20940882 is an apocalyptic number.

20940882 is an abundant number, since it is smaller than the sum of its proper divisors (21531630).

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

20940882 is a wasteful number, since it uses less digits than its factorization.

20940882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49233.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 20940882 is about 4576.1208463064. The cubic root of 20940882 is about 275.6332821283.

The spelling of 20940882 in words is "twenty million, nine hundred forty thousand, eight hundred eighty-two".