5403400321 has 12 divisors (see below), whose sum is σ = 6144081300. Its totient is φ = 4742793440.

The previous prime is 5403400279. The next prime is 5403400357. The reversal of 5403400321 is 1230043045.

It can be written as a sum of positive squares in 2 ways, for example, as 4385088400 + 1018311921 = 66220^2 + 31911^2 .

It is not a de Polignac number, because 5403400321 - 2⁹ = 5403399809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5403400292 and 5403400301.

It is not an unprimeable number, because it can be changed into a prime (5403400381) 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, 766426 + ... + 773443.

It is an arithmetic number, because the mean of its divisors is an integer number (512006775).

Almost surely, 2^5403400321 is an apocalyptic number.

It is an amenable number.

5403400321 is a deficient number, since it is larger than the sum of its proper divisors (740680979).

5403400321 is a wasteful number, since it uses less digits than its factorization.

5403400321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1539920 (or 1539909 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 5403400321 is about 73507.8248964013. The cubic root of 5403400321 is about 1754.7788100660.

Adding to 5403400321 its reverse (1230043045), we get a palindrome (6633443366).

The spelling of 5403400321 in words is "five billion, four hundred three million, four hundred thousand, three hundred twenty-one".