20633622 has 16 divisors (see below), whose sum is σ = 43061760. Its totient is φ = 6578792.

The previous prime is 20633617. The next prime is 20633623. The reversal of 20633622 is 22633602.

It is a junction number, because it is equal to n+sod(n) for n = 20633592 and 20633601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20633623) 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, 74622 + ... + 74897.

It is an arithmetic number, because the mean of its divisors is an integer number (2691360).

Almost surely, 2^20633622 is an apocalyptic number.

20633622 is an abundant number, since it is smaller than the sum of its proper divisors (22428138).

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

20633622 is a wasteful number, since it uses less digits than its factorization.

20633622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149547.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 20633622 is about 4542.4246829199. The cubic root of 20633622 is about 274.2785364410.

The spelling of 20633622 in words is "twenty million, six hundred thirty-three thousand, six hundred twenty-two".