20002099 has 8 divisors (see below), whose sum is σ = 22236032. Its totient is φ = 17867520.

The previous prime is 20002097. The next prime is 20002123. The reversal of 20002099 is 99020002.

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

It is a cyclic number.

It is not a de Polignac number, because 20002099 - 2¹ = 20002097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20002097) 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, 24414 + ... + 25219.

It is an arithmetic number, because the mean of its divisors is an integer number (2779504).

Almost surely, 2^20002099 is an apocalyptic number.

20002099 is a deficient number, since it is larger than the sum of its proper divisors (2233933).

20002099 is a wasteful number, since it uses less digits than its factorization.

20002099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49677.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 20002099 is about 4472.3706241768. The cubic root of 20002099 is about 271.4512572649.

The spelling of 20002099 in words is "twenty million, two thousand, ninety-nine".