2140404433 has 4 divisors (see below), whose sum is σ = 2167498240. Its totient is φ = 2113310628.

The previous prime is 2140404407. The next prime is 2140404437. The reversal of 2140404433 is 3344040412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2140404433 is a prime.

It is a super-2 number, since 2×2140404433² = 9162662273612102978, 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 = 2140404398 and 2140404407.

It is not an unprimeable number, because it can be changed into a prime (2140404437) 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, 13546785 + ... + 13546942.

It is an arithmetic number, because the mean of its divisors is an integer number (541874560).

Almost surely, 2^2140404433 is an apocalyptic number.

It is an amenable number.

2140404433 is a deficient number, since it is larger than the sum of its proper divisors (27093807).

2140404433 is an equidigital number, since it uses as much as digits as its factorization.

2140404433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27093806.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 2140404433 is about 46264.5051092087. The cubic root of 2140404433 is about 1288.7399175098.

Adding to 2140404433 its reverse (3344040412), we get a palindrome (5484444845).

The spelling of 2140404433 in words is "two billion, one hundred forty million, four hundred four thousand, four hundred thirty-three".