1156420232 has 36 divisors (see below), whose sum is σ = 2385507285. Its totient is φ = 525164640.

The previous prime is 1156420219. The next prime is 1156420247. The reversal of 1156420232 is 2320246511.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 716847076 + 439573156 = 26774^2 + 20966^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=24046.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1057478 + ... + 1058570.

Almost surely, 2^1156420232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1156420232

1156420232 is an abundant number, since it is smaller than the sum of its proper divisors (1229087053).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1156420232 is an equidigital number, since it uses as much as digits as its factorization.

1156420232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2214 (or 1106 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 1156420232 is about 34006.1793208234. The cubic root of 1156420232 is about 1049.6356202009.

Adding to 1156420232 its reverse (2320246511), we get a palindrome (3476666743).

The spelling of 1156420232 in words is "one billion, one hundred fifty-six million, four hundred twenty thousand, two hundred thirty-two".