1403233221 has 16 divisors (see below), whose sum is σ = 2015632640. Its totient is φ = 863213760.

The previous prime is 1403233219. The next prime is 1403233253. The reversal of 1403233221 is 1223323041.

1403233221 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1403233221 - 2¹ = 1403233219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1403233211) 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, 148251 + ... + 157431.

It is an arithmetic number, because the mean of its divisors is an integer number (125977040).

Almost surely, 2^1403233221 is an apocalyptic number.

It is an amenable number.

1403233221 is a deficient number, since it is larger than the sum of its proper divisors (612399419).

1403233221 is a wasteful number, since it uses less digits than its factorization.

1403233221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13116.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1403233221 is about 37459.7546841941. The cubic root of 1403233221 is about 1119.5494629747.

Adding to 1403233221 its reverse (1223323041), we get a palindrome (2626556262).

The spelling of 1403233221 in words is "one billion, four hundred three million, two hundred thirty-three thousand, two hundred twenty-one".