20675996 has 18 divisors (see below), whose sum is σ = 39772320. Its totient is φ = 9397960.

The previous prime is 20675983. The next prime is 20676017. The reversal of 20675996 is 69957602.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 20876 + ... + 21843.

Almost surely, 2^20675996 is an apocalyptic number.

It is an amenable number.

20675996 is a deficient number, since it is larger than the sum of its proper divisors (19096324).

20675996 is a wasteful number, since it uses less digits than its factorization.

20675996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42745 (or 42732 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 44.

The square root of 20675996 is about 4547.0865397527. The cubic root of 20675996 is about 274.4661643779.

The spelling of 20675996 in words is "twenty million, six hundred seventy-five thousand, nine hundred ninety-six".