2141723340 has 72 divisors (see below), whose sum is σ = 6593561520. Its totient is φ = 562598784.

The previous prime is 2141723321. The next prime is 2141723347. The reversal of 2141723340 is 433271412.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2141723347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76735 + ... + 100854.

Almost surely, 2^2141723340 is an apocalyptic number.

2141723340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2141723340 is an abundant number, since it is smaller than the sum of its proper divisors (4451838180).

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

2141723340 is a wasteful number, since it uses less digits than its factorization.

2141723340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177671 (or 177666 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 2141723340 is about 46278.7568977387. The cubic root of 2141723340 is about 1289.0045682880.

Adding to 2141723340 its reverse (433271412), we get a palindrome (2574994752).

The spelling of 2141723340 in words is "two billion, one hundred forty-one million, seven hundred twenty-three thousand, three hundred forty".