202009369 has 9 divisors (see below), whose sum is σ = 206260509. Its totient is φ = 197844960.

The previous prime is 202009363. The next prime is 202009397. The reversal of 202009369 is 963900202.

The square root of 202009369 is 14213.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 128255625 + 73753744 = 11325^2 + 8588^2 .

It is not a de Polignac number, because 202009369 - 2¹⁷ = 201878297 is a prime.

It is a super-2 number, since 2×202009369² = 81615570327556322, which contains 22 as substring.

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 202009369.

It is not an unprimeable number, because it can be changed into a prime (202009363) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 866877 + ... + 867109.

Almost surely, 2^202009369 is an apocalyptic number.

202009369 is the 14213-rd square number.

202009369 is the 7107-th centered octagonal number.

It is an amenable number.

202009369 is a deficient number, since it is larger than the sum of its proper divisors (4251140).

202009369 is an frugal number, since it uses more digits than its factorization.

202009369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 31.

The cubic root of 202009369 is about 586.7555020362.

The spelling of 202009369 in words is "two hundred two million, nine thousand, three hundred sixty-nine".