2141322440 has 32 divisors (see below), whose sum is σ = 4862187000. Its totient is φ = 848669184.

The previous prime is 2141322373. The next prime is 2141322451. The reversal of 2141322440 is 442231412.

It can be written as a sum of positive squares in 4 ways, for example, as 2070796036 + 70526404 = 45506^2 + 8398^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241205 + ... + 249924.

Almost surely, 2^2141322440 is an apocalyptic number.

2141322440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2141322440 is an abundant number, since it is smaller than the sum of its proper divisors (2720864560).

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

2141322440 is a wasteful number, since it uses less digits than its factorization.

2141322440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491249 (or 491245 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 2141322440 is about 46274.4253340871. The cubic root of 2141322440 is about 1288.9241355249.

Adding to 2141322440 its reverse (442231412), we get a palindrome (2583553852).

The spelling of 2141322440 in words is "two billion, one hundred forty-one million, three hundred twenty-two thousand, four hundred forty".