202432140 has 72 divisors (see below), whose sum is σ = 615254640. Its totient is φ = 53875584.

The previous prime is 202432133. The next prime is 202432163. The reversal of 202432140 is 41234202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140946 + ... + 142374.

Almost surely, 2^202432140 is an apocalyptic number.

202432140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202432140 is an abundant number, since it is smaller than the sum of its proper divisors (412822500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202432140 is a wasteful number, since it uses less digits than its factorization.

202432140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2231 (or 2226 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 202432140 is about 14227.8649136123. The cubic root of 202432140 is about 587.1645430644.

Adding to 202432140 its reverse (41234202), we get a palindrome (243666342).

The spelling of 202432140 in words is "two hundred two million, four hundred thirty-two thousand, one hundred forty".