20342232 has 64 divisors (see below), whose sum is σ = 57909600. Its totient is φ = 6612480.

The previous prime is 20342213. The next prime is 20342243. The reversal of 20342232 is 23224302.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 7708 + ... + 10004.

Almost surely, 2^20342232 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 20342232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28954800).

20342232 is an abundant number, since it is smaller than the sum of its proper divisors (37567368).

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

20342232 is a wasteful number, since it uses less digits than its factorization.

20342232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353 (or 2343 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 20342232 is about 4510.2363574429. The cubic root of 20342232 is about 272.9812811703.

Adding to 20342232 its reverse (23224302), we get a palindrome (43566534).

The spelling of 20342232 in words is "twenty million, three hundred forty-two thousand, two hundred thirty-two".