20567946 has 24 divisors (see below), whose sum is σ = 47852640. Its totient is φ = 5876472.

The previous prime is 20567927. The next prime is 20567971. The reversal of 20567946 is 64976502.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34686 + ... + 35273.

It is an arithmetic number, because the mean of its divisors is an integer number (1993860).

Almost surely, 2^20567946 is an apocalyptic number.

20567946 is an abundant number, since it is smaller than the sum of its proper divisors (27284694).

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

20567946 is a wasteful number, since it uses less digits than its factorization.

20567946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69978 (or 69971 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 20567946 is about 4535.1897424474. The cubic root of 20567946 is about 273.9872212415.

The spelling of 20567946 in words is "twenty million, five hundred sixty-seven thousand, nine hundred forty-six".