20830244 has 12 divisors (see below), whose sum is σ = 36672384. Its totient is φ = 10352424.

The previous prime is 20830241. The next prime is 20830247. The reversal of 20830244 is 44203802.

It is an interprime number because it is at equal distance from previous prime (20830241) and next prime (20830247).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20830241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14924 + ... + 16259.

It is an arithmetic number, because the mean of its divisors is an integer number (3056032).

Almost surely, 2^20830244 is an apocalyptic number.

It is an amenable number.

20830244 is a deficient number, since it is larger than the sum of its proper divisors (15842140).

20830244 is a wasteful number, since it uses less digits than its factorization.

20830244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31354 (or 31352 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 20830244 is about 4564.0162138187. The cubic root of 20830244 is about 275.1470023970.

The spelling of 20830244 in words is "twenty million, eight hundred thirty thousand, two hundred forty-four".