202712140 has 24 divisors (see below), whose sum is σ = 448101360. Its totient is φ = 76817088.

The previous prime is 202712119. The next prime is 202712143. The reversal of 202712140 is 41217202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (202712143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266347 + ... + 267106.

It is an arithmetic number, because the mean of its divisors is an integer number (18670890).

Almost surely, 2^202712140 is an apocalyptic number.

202712140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202712140 is an abundant number, since it is smaller than the sum of its proper divisors (245389220).

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

202712140 is a wasteful number, since it uses less digits than its factorization.

202712140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533481 (or 533479 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 202712140 is about 14237.7013594189. The cubic root of 202712140 is about 587.4351363428.

Adding to 202712140 its reverse (41217202), we get a palindrome (243929342).

The spelling of 202712140 in words is "two hundred two million, seven hundred twelve thousand, one hundred forty".