202432661 has 12 divisors (see below), whose sum is σ = 211252608. Its totient is φ = 193933872.

The previous prime is 202432627. The next prime is 202432667. The reversal of 202432661 is 166234202.

It is a de Polignac number, because none of the positive numbers 2^k-202432661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 202432661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202432667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90620 + ... + 92826.

It is an arithmetic number, because the mean of its divisors is an integer number (17604384).

Almost surely, 2^202432661 is an apocalyptic number.

It is an amenable number.

202432661 is a deficient number, since it is larger than the sum of its proper divisors (8819947).

202432661 is an equidigital number, since it uses as much as digits as its factorization.

202432661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2348 (or 2311 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 202432661 is about 14227.8832227426. The cubic root of 202432661 is about 587.1650467928.

Adding to 202432661 its reverse (166234202), we get a palindrome (368666863).

The spelling of 202432661 in words is "two hundred two million, four hundred thirty-two thousand, six hundred sixty-one".