32243381 has 2 divisors, whose sum is σ = 32243382. Its totient is φ = 32243380.

The previous prime is 32243377. The next prime is 32243459. The reversal of 32243381 is 18334223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31820881 + 422500 = 5641^2 + 650^2 .

It is an emirp because it is prime and its reverse (18334223) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32243381 - 2² = 32243377 is a prime.

It is a super-2 number, since 2×32243381² = 2079271236622322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 32243381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32246381) 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 as a sum of consecutive naturals, namely, 16121690 + 16121691.

It is an arithmetic number, because the mean of its divisors is an integer number (16121691).

Almost surely, 2^32243381 is an apocalyptic number.

It is an amenable number.

32243381 is a deficient number, since it is larger than the sum of its proper divisors (1).

32243381 is an equidigital number, since it uses as much as digits as its factorization.

32243381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 26.

The square root of 32243381 is about 5678.3255454403. The cubic root of 32243381 is about 318.2830602030.

The spelling of 32243381 in words is "thirty-two million, two hundred forty-three thousand, three hundred eighty-one".