20323622 has 16 divisors (see below), whose sum is σ = 33363792. Its totient is φ = 9208320.

The previous prime is 20323613. The next prime is 20323637. The reversal of 20323622 is 22632302.

It is a happy number.

It is a super-2 number, since 2×20323622² = 826099222397768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20323594 and 20323603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6458 + ... + 9074.

It is an arithmetic number, because the mean of its divisors is an integer number (2085237).

Almost surely, 2^20323622 is an apocalyptic number.

20323622 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20323622 is a deficient number, since it is larger than the sum of its proper divisors (13040170).

20323622 is a wasteful number, since it uses less digits than its factorization.

20323622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2983.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 20323622 is about 4508.1728005923. The cubic root of 20323622 is about 272.8980105370.

Adding to 20323622 its reverse (22632302), we get a palindrome (42955924).

The spelling of 20323622 in words is "twenty million, three hundred twenty-three thousand, six hundred twenty-two".