20669622 has 16 divisors (see below), whose sum is σ = 42673152. Its totient is φ = 6667560.

The previous prime is 20669611. The next prime is 20669641. The reversal of 20669622 is 22696602.

It is a zygodrome in base 8.

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, 55378 + ... + 55749.

It is an arithmetic number, because the mean of its divisors is an integer number (2667072).

Almost surely, 2^20669622 is an apocalyptic number.

20669622 is an abundant number, since it is smaller than the sum of its proper divisors (22003530).

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

20669622 is a wasteful number, since it uses less digits than its factorization.

20669622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111163.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 20669622 is about 4546.3855973729. The cubic root of 20669622 is about 274.4379573186.

The spelling of 20669622 in words is "twenty million, six hundred sixty-nine thousand, six hundred twenty-two".