20191622 has 16 divisors (see below), whose sum is σ = 33666192. Its totient is φ = 9004320.

The previous prime is 20191621. The next prime is 20191637. The reversal of 20191622 is 22619102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20191621) 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, 7493 + ... + 9824.

It is an arithmetic number, because the mean of its divisors is an integer number (2104137).

Almost surely, 2^20191622 is an apocalyptic number.

20191622 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20191622 is a deficient number, since it is larger than the sum of its proper divisors (13474570).

20191622 is a wasteful number, since it uses less digits than its factorization.

20191622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17383.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 20191622 is about 4493.5088739202. The cubic root of 20191622 is about 272.3059112273.

The spelling of 20191622 in words is "twenty million, one hundred ninety-one thousand, six hundred twenty-two".