202102399 has 8 divisors (see below), whose sum is σ = 208231488. Its totient is φ = 196008480.

The previous prime is 202102393. The next prime is 202102429. The reversal of 202102399 is 993201202.

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 202102399 - 2¹¹ = 202100351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202102393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3114 + ... + 20344.

It is an arithmetic number, because the mean of its divisors is an integer number (26028936).

Almost surely, 2^202102399 is an apocalyptic number.

202102399 is a deficient number, since it is larger than the sum of its proper divisors (6129089).

202102399 is a wasteful number, since it uses less digits than its factorization.

202102399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17585.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 202102399 is about 14216.2723313814. The cubic root of 202102399 is about 586.8455597192.

The spelling of 202102399 in words is "two hundred two million, one hundred two thousand, three hundred ninety-nine".