20342322 has 96 divisors (see below), whose sum is σ = 59230080. Its totient is φ = 4872960.

The previous prime is 20342317. The next prime is 20342347. The reversal of 20342322 is 22324302.

20342322 is a `hidden beast` number, since 2 + 0 + 342 + 322 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 20342295 and 20342304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17454 + ... + 18582.

It is an arithmetic number, because the mean of its divisors is an integer number (616980).

Almost surely, 2^20342322 is an apocalyptic number.

20342322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20342322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29615040).

20342322 is an abundant number, since it is smaller than the sum of its proper divisors (38887758).

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

20342322 is a wasteful number, since it uses less digits than its factorization.

20342322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168 (or 1165 counting only the distinct ones).

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

The square root of 20342322 is about 4510.2463347361. The cubic root of 20342322 is about 272.9816837528.

Adding to 20342322 its reverse (22324302), we get a palindrome (42666624).

It can be divided in two parts, 2034 and 2322, that added together give a square (4356 = 66²).

The spelling of 20342322 in words is "twenty million, three hundred forty-two thousand, three hundred twenty-two".