2040403421 has 8 divisors (see below), whose sum is σ = 2332401984. Its totient is φ = 1748532960.

The previous prime is 2040403411. The next prime is 2040403423. The reversal of 2040403421 is 1243040402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2040403421 - 2⁶ = 2040403357 is a prime.

It is a super-2 number, since 2×2040403421² = 8326492240857006482, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2040403393 and 2040403402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2040403423) by changing a digit.

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, 4961 + ... + 64073.

It is an arithmetic number, because the mean of its divisors is an integer number (291550248).

Almost surely, 2^2040403421 is an apocalyptic number.

It is an amenable number.

2040403421 is a deficient number, since it is larger than the sum of its proper divisors (291998563).

2040403421 is an equidigital number, since it uses as much as digits as its factorization.

2040403421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64051.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2040403421 is about 45170.8248873097. The cubic root of 2040403421 is about 1268.3487376568.

Adding to 2040403421 its reverse (1243040402), we get a palindrome (3283443823).

The spelling of 2040403421 in words is "two billion, forty million, four hundred three thousand, four hundred twenty-one".