20189482 has 8 divisors (see below), whose sum is σ = 30371076. Its totient is φ = 10065792.

The previous prime is 20189479. The next prime is 20189497. The reversal of 20189482 is 28498102.

It can be written as a sum of positive squares in 2 ways, for example, as 18309841 + 1879641 = 4279^2 + 1371^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13593 + ... + 15004.

Almost surely, 2^20189482 is an apocalyptic number.

20189482 is a deficient number, since it is larger than the sum of its proper divisors (10181594).

20189482 is a wasteful number, since it uses less digits than its factorization.

20189482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28952.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 20189482 is about 4493.2707463495. The cubic root of 20189482 is about 272.2962908141.

The spelling of 20189482 in words is "twenty million, one hundred eighty-nine thousand, four hundred eighty-two".