20485299 has 4 divisors (see below), whose sum is σ = 27313736. Its totient is φ = 13656864.

The previous prime is 20485277. The next prime is 20485301. The reversal of 20485299 is 99258402.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-20485299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20485229) 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, 3414214 + ... + 3414219.

It is an arithmetic number, because the mean of its divisors is an integer number (6828434).

Almost surely, 2^20485299 is an apocalyptic number.

20485299 is a deficient number, since it is larger than the sum of its proper divisors (6828437).

20485299 is an equidigital number, since it uses as much as digits as its factorization.

20485299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6828436.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 20485299 is about 4526.0688240459. The cubic root of 20485299 is about 273.6197462109.

The spelling of 20485299 in words is "twenty million, four hundred eighty-five thousand, two hundred ninety-nine".