20994606 has 16 divisors (see below), whose sum is σ = 46654800. Its totient is φ = 6998184.

The previous prime is 20994569. The next prime is 20994647. The reversal of 20994606 is 60649902.

It is a congruent number.

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, 194341 + ... + 194448.

It is an arithmetic number, because the mean of its divisors is an integer number (2915925).

Almost surely, 2^20994606 is an apocalyptic number.

20994606 is an abundant number, since it is smaller than the sum of its proper divisors (25660194).

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

20994606 is a wasteful number, since it uses less digits than its factorization.

20994606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388800 (or 388794 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 20994606 is about 4581.9871235088. The cubic root of 20994606 is about 275.8687939693.

The spelling of 20994606 in words is "twenty million, nine hundred ninety-four thousand, six hundred six".