20099234 has 8 divisors (see below), whose sum is σ = 30179628. Its totient is φ = 10039360.

The previous prime is 20099231. The next prime is 20099267. The reversal of 20099234 is 43299002.

It can be written as a sum of positive squares in 2 ways, for example, as 19333609 + 765625 = 4397^2 + 875^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20099197 and 20099206.

It is not an unprimeable number, because it can be changed into a prime (20099231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2387 + ... + 6774.

Almost surely, 2^20099234 is an apocalyptic number.

20099234 is a deficient number, since it is larger than the sum of its proper divisors (10080394).

20099234 is a wasteful number, since it uses less digits than its factorization.

20099234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10260.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 20099234 is about 4483.2169253785. The cubic root of 20099234 is about 271.8899587313.

The spelling of 20099234 in words is "twenty million, ninety-nine thousand, two hundred thirty-four".