3403400321 has 12 divisors (see below), whose sum is σ = 3560711700. Its totient is φ = 3252770400.

The previous prime is 3403400311. The next prime is 3403400347. The reversal of 3403400321 is 1230043043.

It can be written as a sum of positive squares in 2 ways, for example, as 1727316721 + 1676083600 = 41561^2 + 40940^2 .

It is not a de Polignac number, because 3403400321 - 2⁶ = 3403400257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3403400293 and 3403400302.

It is not an unprimeable number, because it can be changed into a prime (3403400311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1029371 + ... + 1032671.

It is an arithmetic number, because the mean of its divisors is an integer number (296725975).

Almost surely, 2^3403400321 is an apocalyptic number.

It is an amenable number.

3403400321 is a deficient number, since it is larger than the sum of its proper divisors (157311379).

3403400321 is a wasteful number, since it uses less digits than its factorization.

3403400321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5296 (or 5273 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 3403400321 is about 58338.6691740564. The cubic root of 3403400321 is about 1504.1957080433.

Adding to 3403400321 its reverse (1230043043), we get a palindrome (4633443364).

The spelling of 3403400321 in words is "three billion, four hundred three million, four hundred thousand, three hundred twenty-one".