2034400421 has 8 divisors (see below), whose sum is σ = 2155999320. Its totient is φ = 1913015808.

The previous prime is 2034400411. The next prime is 2034400453. The reversal of 2034400421 is 1240044302.

It can be written as a sum of positive squares in 4 ways, for example, as 99720196 + 1934680225 = 9986^2 + 43985^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2034400421 is a prime.

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 = 2034400393 and 2034400402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2034400411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33806 + ... + 72191.

It is an arithmetic number, because the mean of its divisors is an integer number (269499915).

Almost surely, 2^2034400421 is an apocalyptic number.

It is an amenable number.

2034400421 is a deficient number, since it is larger than the sum of its proper divisors (121598899).

2034400421 is a wasteful number, since it uses less digits than its factorization.

2034400421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107143.

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

The square root of 2034400421 is about 45104.3281847762. The cubic root of 2034400421 is about 1267.1036609098.

Adding to 2034400421 its reverse (1240044302), we get a palindrome (3274444723).

The spelling of 2034400421 in words is "two billion, thirty-four million, four hundred thousand, four hundred twenty-one".