1403422321 has 16 divisors (see below), whose sum is σ = 1675198080. Its totient is φ = 1150571520.

The previous prime is 1403422309. The next prime is 1403422367. The reversal of 1403422321 is 1232243041.

It is not a de Polignac number, because 1403422321 - 2⁷ = 1403422193 is a prime.

It is a super-2 number, since 2×1403422321² = 3939188422162054082, 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 = 1403422292 and 1403422301.

It is not an unprimeable number, because it can be changed into a prime (1403422621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30640 + ... + 61201.

It is an arithmetic number, because the mean of its divisors is an integer number (104699880).

Almost surely, 2^1403422321 is an apocalyptic number.

It is an amenable number.

1403422321 is a deficient number, since it is larger than the sum of its proper divisors (271775759).

1403422321 is an equidigital number, since it uses as much as digits as its factorization.

1403422321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91944.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1403422321 is about 37462.2786413213. The cubic root of 1403422321 is about 1119.5997509552.

Adding to 1403422321 its reverse (1232243041), we get a palindrome (2635665362).

The spelling of 1403422321 in words is "one billion, four hundred three million, four hundred twenty-two thousand, three hundred twenty-one".