20271976 has 16 divisors (see below), whose sum is σ = 38211840. Its totient is φ = 10082160.

The previous prime is 20271961. The next prime is 20271983. The reversal of 20271976 is 67917202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5106 + ... + 8161.

It is an arithmetic number, because the mean of its divisors is an integer number (2388240).

Almost surely, 2^20271976 is an apocalyptic number.

It is an amenable number.

20271976 is a deficient number, since it is larger than the sum of its proper divisors (17939864).

20271976 is a wasteful number, since it uses less digits than its factorization.

20271976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13464 (or 13460 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 20271976 is about 4502.4411156616. The cubic root of 20271976 is about 272.6666533823. Note that the first 4 decimals are identical.

The spelling of 20271976 in words is "twenty million, two hundred seventy-one thousand, nine hundred seventy-six".