20189962 has 16 divisors (see below), whose sum is σ = 33374880. Its totient is φ = 9101232.

The previous prime is 20189941. The next prime is 20189969. The reversal of 20189962 is 26998102.

It is a super-2 number, since 2×20189962² = 815269131122888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20189969) 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, 7912 + ... + 10147.

It is an arithmetic number, because the mean of its divisors is an integer number (2085930).

Almost surely, 2^20189962 is an apocalyptic number.

20189962 is a deficient number, since it is larger than the sum of its proper divisors (13184918).

20189962 is a wasteful number, since it uses less digits than its factorization.

20189962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18117.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 20189962 is about 4493.3241592389. The cubic root of 20189962 is about 272.2984487230.

The spelling of 20189962 in words is "twenty million, one hundred eighty-nine thousand, nine hundred sixty-two".