20941976 has 16 divisors (see below), whose sum is σ = 42836040. Its totient is φ = 9519040.

The previous prime is 20941927. The next prime is 20941981. The reversal of 20941976 is 67914902.

It is a super-3 number, since 3×20941976³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118901 + ... + 119076.

Almost surely, 2^20941976 is an apocalyptic number.

It is an amenable number.

20941976 is an abundant number, since it is smaller than the sum of its proper divisors (21894064).

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

20941976 is a wasteful number, since it uses less digits than its factorization.

20941976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237994 (or 237990 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 20941976 is about 4576.2403783018. The cubic root of 20941976 is about 275.6380819510.

The spelling of 20941976 in words is "twenty million, nine hundred forty-one thousand, nine hundred seventy-six".