202280427 has 6 divisors (see below), whose sum is σ = 292182852. Its totient is φ = 134853612.

The previous prime is 202280413. The next prime is 202280447. The reversal of 202280427 is 724082202.

It is not a de Polignac number, because 202280427 - 2¹⁵ = 202247659 is a prime.

It is a super-2 number, since 2×202280427² = 81834742294604658, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 202280427.

It is not an unprimeable number, because it can be changed into a prime (202280447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11237793 + ... + 11237810.

It is an arithmetic number, because the mean of its divisors is an integer number (48697142).

Almost surely, 2^202280427 is an apocalyptic number.

202280427 is a deficient number, since it is larger than the sum of its proper divisors (89902425).

202280427 is a wasteful number, since it uses less digits than its factorization.

202280427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22475609 (or 22475606 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 202280427 is about 14222.5323694481. The cubic root of 202280427 is about 587.0178226912.

The spelling of 202280427 in words is "two hundred two million, two hundred eighty thousand, four hundred twenty-seven".