20944445 has 8 divisors (see below), whose sum is σ = 25194240. Its totient is φ = 16714960.

The previous prime is 20944393. The next prime is 20944453. The reversal of 20944445 is 54444902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20944445 - 2¹⁰ = 20943421 is a prime.

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, 2705 + ... + 7014.

It is an arithmetic number, because the mean of its divisors is an integer number (3149280).

Almost surely, 2^20944445 is an apocalyptic number.

It is an amenable number.

20944445 is a deficient number, since it is larger than the sum of its proper divisors (4249795).

20944445 is an equidigital number, since it uses as much as digits as its factorization.

20944445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10155.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 20944445 is about 4576.5101332784. The cubic root of 20944445 is about 275.6489138432.

The spelling of 20944445 in words is "twenty million, nine hundred forty-four thousand, four hundred forty-five".