202204254340 has 144 divisors (see below), whose sum is σ = 472355735040. Its totient is φ = 72648576000.

The previous prime is 202204254331. The next prime is 202204254349. The reversal of 202204254340 is 43452402202.

It is an interprime number because it is at equal distance from previous prime (202204254331) and next prime (202204254349).

It is a junction number, because it is equal to n+sod(n) for n = 202204254299 and 202204254308.

It is not an unprimeable number, because it can be changed into a prime (202204254349) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 103640365 + ... + 103642315.

It is an arithmetic number, because the mean of its divisors is an integer number (3280248160).

Almost surely, 2^202204254340 is an apocalyptic number.

202204254340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202204254340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236177867520).

202204254340 is an abundant number, since it is smaller than the sum of its proper divisors (270151480700).

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

202204254340 is a wasteful number, since it uses less digits than its factorization.

202204254340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2474 (or 2461 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 28.

Adding to 202204254340 its reverse (43452402202), we get a palindrome (245656656542).

The spelling of 202204254340 in words is "two hundred two billion, two hundred four million, two hundred fifty-four thousand, three hundred forty".