20944355 has 8 divisors (see below), whose sum is σ = 25201152. Its totient is φ = 16710208.

The previous prime is 20944309. The next prime is 20944367. The reversal of 20944355 is 55344902.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20944355 - 2⁶ = 20944291 is a prime.

It is a Duffinian 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, 3554 + ... + 7383.

It is an arithmetic number, because the mean of its divisors is an integer number (3150144).

Almost surely, 2^20944355 is an apocalyptic number.

20944355 is a deficient number, since it is larger than the sum of its proper divisors (4256797).

20944355 is a wasteful number, since it uses less digits than its factorization.

20944355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11325.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 20944355 is about 4576.5003004479. The cubic root of 20944355 is about 275.6485190140.

The spelling of 20944355 in words is "twenty million, nine hundred forty-four thousand, three hundred fifty-five".