20944330 has 16 divisors (see below), whose sum is σ = 41127264. Its totient is φ = 7616080.

The previous prime is 20944309. The next prime is 20944367. The reversal of 20944330 is 3344902.

It is a junction number, because it is equal to n+sod(n) for n = 20944295 and 20944304.

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, 95092 + ... + 95311.

It is an arithmetic number, because the mean of its divisors is an integer number (2570454).

Almost surely, 2^20944330 is an apocalyptic number.

20944330 is a deficient number, since it is larger than the sum of its proper divisors (20182934).

20944330 is a wasteful number, since it uses less digits than its factorization.

20944330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190421.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 20944330 is about 4576.4975691024. The cubic root of 20944330 is about 275.6484093390.

The spelling of 20944330 in words is "twenty million, nine hundred forty-four thousand, three hundred thirty".