2140330421 has 16 divisors (see below), whose sum is σ = 2221459968. Its totient is φ = 2060726400.

The previous prime is 2140330403. The next prime is 2140330441. The reversal of 2140330421 is 1240330412.

It is a cyclic number.

It is not a de Polignac number, because 2140330421 - 2¹⁰ = 2140329397 is a prime.

It is a super-2 number, since 2×2140330421² = 9162028622116074482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2140330393 and 2140330402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140330441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1549151 + ... + 1550531.

It is an arithmetic number, because the mean of its divisors is an integer number (138841248).

Almost surely, 2^2140330421 is an apocalyptic number.

It is an amenable number.

2140330421 is a deficient number, since it is larger than the sum of its proper divisors (81129547).

2140330421 is a wasteful number, since it uses less digits than its factorization.

2140330421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1892.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2140330421 is about 46263.7052234254. The cubic root of 2140330421 is about 1288.7250631024.

Adding to 2140330421 its reverse (1240330412), we get a palindrome (3380660833).

Subtracting from 2140330421 its reverse (1240330412), we obtain a palindrome (900000009).

The spelling of 2140330421 in words is "two billion, one hundred forty million, three hundred thirty thousand, four hundred twenty-one".