20949244 has 6 divisors (see below), whose sum is σ = 36661184. Its totient is φ = 10474620.

The previous prime is 20949241. The next prime is 20949259. The reversal of 20949244 is 44294902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20949241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2618652 + ... + 2618659.

Almost surely, 2^20949244 is an apocalyptic number.

It is an amenable number.

20949244 is a deficient number, since it is larger than the sum of its proper divisors (15711940).

20949244 is a wasteful number, since it uses less digits than its factorization.

20949244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5237315 (or 5237313 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 20949244 is about 4577.0344110570. The cubic root of 20949244 is about 275.6699653777.

The spelling of 20949244 in words is "twenty million, nine hundred forty-nine thousand, two hundred forty-four".