2202131440 has 20 divisors (see below), whose sum is σ = 5119955784. Its totient is φ = 880852544.

The previous prime is 2202131429. The next prime is 2202131447. The reversal of 2202131440 is 441312022.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202131447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13763242 + ... + 13763401.

Almost surely, 2^2202131440 is an apocalyptic number.

2202131440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2202131440 is an abundant number, since it is smaller than the sum of its proper divisors (2917824344).

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

2202131440 is a wasteful number, since it uses less digits than its factorization.

2202131440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27526656 (or 27526650 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 2202131440 is about 46926.8733243544. The cubic root of 2202131440 is about 1301.0113313767.

Adding to 2202131440 its reverse (441312022), we get a palindrome (2643443462).

The spelling of 2202131440 in words is "two billion, two hundred two million, one hundred thirty-one thousand, four hundred forty".