20950244 has 36 divisors (see below), whose sum is σ = 43163820. Its totient is φ = 8870400.

The previous prime is 20950243. The next prime is 20950249. The reversal of 20950244 is 44205902.

It can be written as a sum of positive squares in 2 ways, for example, as 1254400 + 19695844 = 1120^2 + 4438^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20950243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16844 + ... + 18044.

It is an arithmetic number, because the mean of its divisors is an integer number (1198995).

Almost surely, 2^20950244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20950244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21581910).

20950244 is an abundant number, since it is smaller than the sum of its proper divisors (22213576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20950244 is a wasteful number, since it uses less digits than its factorization.

20950244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308 (or 1299 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 20950244 is about 4577.1436507936. The cubic root of 20950244 is about 275.6743516231.

The spelling of 20950244 in words is "twenty million, nine hundred fifty thousand, two hundred forty-four".