20746444 has 12 divisors (see below), whose sum is σ = 36646344. Its totient is φ = 10276064.

The previous prime is 20746441. The next prime is 20746487. The reversal of 20746444 is 44464702.

It is not an unprimeable number, because it can be changed into a prime (20746441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23809 + ... + 24664.

It is an arithmetic number, because the mean of its divisors is an integer number (3053862).

Almost surely, 2^20746444 is an apocalyptic number.

It is an amenable number.

20746444 is a deficient number, since it is larger than the sum of its proper divisors (15899900).

20746444 is a wasteful number, since it uses less digits than its factorization.

20746444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48584 (or 48582 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 31.

The square root of 20746444 is about 4554.8264511395. The cubic root of 20746444 is about 274.7775346825. Note that the first 3 decimals are identical.

The spelling of 20746444 in words is "twenty million, seven hundred forty-six thousand, four hundred forty-four".