20912622 has 16 divisors (see below), whose sum is σ = 42956112. Its totient is φ = 6782400.

The previous prime is 20912621. The next prime is 20912627. The reversal of 20912622 is 22621902.

It is a junction number, because it is equal to n+sod(n) for n = 20912592 and 20912601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20912621) 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, 46879 + ... + 47322.

It is an arithmetic number, because the mean of its divisors is an integer number (2684757).

Almost surely, 2^20912622 is an apocalyptic number.

20912622 is an abundant number, since it is smaller than the sum of its proper divisors (22043490).

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

20912622 is a wasteful number, since it uses less digits than its factorization.

20912622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94243.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 20912622 is about 4573.0320357505. The cubic root of 20912622 is about 275.5092360455.

The spelling of 20912622 in words is "twenty million, nine hundred twelve thousand, six hundred twenty-two".