1030432221 has 36 divisors (see below), whose sum is σ = 1864602012. Its totient is φ = 543521664.

The previous prime is 1030432189. The next prime is 1030432229. The reversal of 1030432221 is 1222340301.

1030432221 is a `hidden beast` number, since 10 + 3 + 0 + 432 + 221 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 463325625 + 567106596 = 21525^2 + 23814^2 .

It is not a de Polignac number, because 1030432221 - 2⁵ = 1030432189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1030432194 and 1030432203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030432229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 84136 + ... + 95601.

Almost surely, 2^1030432221 is an apocalyptic number.

It is an amenable number.

1030432221 is a deficient number, since it is larger than the sum of its proper divisors (834169791).

1030432221 is a wasteful number, since it uses less digits than its factorization.

1030432221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179770 (or 179760 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1030432221 is about 32100.3461196293. The cubic root of 1030432221 is about 1010.0428766557.

Adding to 1030432221 its reverse (1222340301), we get a palindrome (2252772522).

The spelling of 1030432221 in words is "one billion, thirty million, four hundred thirty-two thousand, two hundred twenty-one".