20302899 has 16 divisors (see below), whose sum is σ = 27938208. Its totient is φ = 13105152.

The previous prime is 20302897. The next prime is 20302907. The reversal of 20302899 is 99820302.

It is not a de Polignac number, because 20302899 - 2¹ = 20302897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20302897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34899 + ... + 35475.

It is an arithmetic number, because the mean of its divisors is an integer number (1746138).

Almost surely, 2^20302899 is an apocalyptic number.

20302899 is a deficient number, since it is larger than the sum of its proper divisors (7635309).

20302899 is a wasteful number, since it uses less digits than its factorization.

20302899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 20302899 is about 4505.8738331205. The cubic root of 20302899 is about 272.8052254240.

The spelling of 20302899 in words is "twenty million, three hundred two thousand, eight hundred ninety-nine".