20702299 has 8 divisors (see below), whose sum is σ = 20938752. Its totient is φ = 20467560.

The previous prime is 20702293. The next prime is 20702303. The reversal of 20702299 is 99220702.

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

It is not a de Polignac number, because 20702299 - 2⁹ = 20701787 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20702299.

It is not an unprimeable number, because it can be changed into a prime (20702293) 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, 53862 + ... + 54244.

It is an arithmetic number, because the mean of its divisors is an integer number (2617344).

Almost surely, 2^20702299 is an apocalyptic number.

20702299 is a deficient number, since it is larger than the sum of its proper divisors (236453).

20702299 is a wasteful number, since it uses less digits than its factorization.

20702299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 20702299 is about 4549.9779120343. The cubic root of 20702299 is about 274.5825025758.

The spelling of 20702299 in words is "twenty million, seven hundred two thousand, two hundred ninety-nine".