28332411 has 8 divisors (see below), whose sum is σ = 37899264. Its totient is φ = 18826920.

The previous prime is 28332407. The next prime is 28332413. The reversal of 28332411 is 11423382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28332411 - 2² = 28332407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28332413) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 14251 + ... + 16116.

It is an arithmetic number, because the mean of its divisors is an integer number (4737408).

Almost surely, 2^28332411 is an apocalyptic number.

28332411 is a deficient number, since it is larger than the sum of its proper divisors (9566853).

28332411 is a wasteful number, since it uses less digits than its factorization.

28332411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30681.

The product of its digits is 1152, while the sum is 24.

The square root of 28332411 is about 5322.8198353880. The cubic root of 28332411 is about 304.8558344026.

Adding to 28332411 its reverse (11423382), we get a palindrome (39755793).

The spelling of 28332411 in words is "twenty-eight million, three hundred thirty-two thousand, four hundred eleven".