20299902 has 32 divisors (see below), whose sum is σ = 47657472. Its totient is φ = 5642784.

The previous prime is 20299883. The next prime is 20299927. The reversal of 20299902 is 20999202.

20299902 is nontrivially palindromic in base 5.

It is a congruent number.

It is an unprimeable number.

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, 4978 + ... + 8085.

It is an arithmetic number, because the mean of its divisors is an integer number (1489296).

Almost surely, 2^20299902 is an apocalyptic number.

20299902 is an abundant number, since it is smaller than the sum of its proper divisors (27357570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20299902 is a wasteful number, since it uses less digits than its factorization.

20299902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13112.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 20299902 is about 4505.5412549437. The cubic root of 20299902 is about 272.7918014380.

The spelling of 20299902 in words is "twenty million, two hundred ninety-nine thousand, nine hundred two".