20492244 has 24 divisors (see below), whose sum is σ = 53128320. Its totient is φ = 6830712.

The previous prime is 20492243. The next prime is 20492249. The reversal of 20492244 is 44229402.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20492243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94764 + ... + 94979.

It is an arithmetic number, because the mean of its divisors is an integer number (2213680).

Almost surely, 2^20492244 is an apocalyptic number.

It is an amenable number.

20492244 is an abundant number, since it is smaller than the sum of its proper divisors (32636076).

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

20492244 is a wasteful number, since it uses less digits than its factorization.

20492244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189756 (or 189748 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 20492244 is about 4526.8359811241. The cubic root of 20492244 is about 273.6506639018.

It can be divided in two parts, 20492 and 244, that added together give a 4-th power (20736 = 12⁴).

The spelling of 20492244 in words is "twenty million, four hundred ninety-two thousand, two hundred forty-four".