20662422 has 32 divisors (see below), whose sum is σ = 46047744. Its totient is φ = 6127200.

The previous prime is 20662393. The next prime is 20662423. The reversal of 20662422 is 22426602.

It is a junction number, because it is equal to n+sod(n) for n = 20662392 and 20662401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20662423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229 + ... + 6432.

It is an arithmetic number, because the mean of its divisors is an integer number (1438992).

Almost surely, 2^20662422 is an apocalyptic number.

20662422 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 20662422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23023872).

20662422 is an abundant number, since it is smaller than the sum of its proper divisors (25385322).

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

20662422 is a wasteful number, since it uses less digits than its factorization.

20662422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6724.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 20662422 is about 4545.5936905975. The cubic root of 20662422 is about 274.4060879603.

The spelling of 20662422 in words is "twenty million, six hundred sixty-two thousand, four hundred twenty-two".