20352244 has 48 divisors (see below), whose sum is σ = 41158656. Its totient is φ = 8719200.

The previous prime is 20352203. The next prime is 20352259. The reversal of 20352244 is 44225302.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58479 + ... + 58825.

It is an arithmetic number, because the mean of its divisors is an integer number (857472).

Almost surely, 2^20352244 is an apocalyptic number.

It is an amenable number.

20352244 is an abundant number, since it is smaller than the sum of its proper divisors (20806412).

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

20352244 is a wasteful number, since it uses less digits than its factorization.

20352244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 20352244 is about 4511.3461405660. The cubic root of 20352244 is about 273.0260589561.

Adding to 20352244 its reverse (44225302), we get a palindrome (64577546).

The spelling of 20352244 in words is "twenty million, three hundred fifty-two thousand, two hundred forty-four".