28343332 has 12 divisors (see below), whose sum is σ = 50941660. Its totient is φ = 13788576.

The previous prime is 28343323. The next prime is 28343339. The reversal of 28343332 is 23334382.

It can be written as a sum of positive squares in 2 ways, for example, as 21288996 + 7054336 = 4614^2 + 2656^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28343332.

It is not an unprimeable number, because it can be changed into a prime (28343339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95607 + ... + 95902.

Almost surely, 2^28343332 is an apocalyptic number.

It is an amenable number.

28343332 is a deficient number, since it is larger than the sum of its proper divisors (22598328).

28343332 is a wasteful number, since it uses less digits than its factorization.

28343332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191550 (or 191548 counting only the distinct ones).

The product of its digits is 10368, while the sum is 28.

The square root of 28343332 is about 5323.8456025696. The cubic root of 28343332 is about 304.8949992408.

The spelling of 28343332 in words is "twenty-eight million, three hundred forty-three thousand, three hundred thirty-two".