20694944 has 24 divisors (see below), whose sum is σ = 40914720. Its totient is φ = 10303936.

The previous prime is 20694943. The next prime is 20694979. The reversal of 20694944 is 44949602.

It is a junction number, because it is equal to n+sod(n) for n = 20694898 and 20694907.

It is not an unprimeable number, because it can be changed into a prime (20694943) by changing a digit.

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, 7187 + ... + 9645.

It is an arithmetic number, because the mean of its divisors is an integer number (1704780).

Almost surely, 2^20694944 is an apocalyptic number.

It is an amenable number.

20694944 is a deficient number, since it is larger than the sum of its proper divisors (20219776).

20694944 is a wasteful number, since it uses less digits than its factorization.

20694944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2732 (or 2724 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 20694944 is about 4549.1695945524. The cubic root of 20694944 is about 274.5499813323.

The spelling of 20694944 in words is "twenty million, six hundred ninety-four thousand, nine hundred forty-four".