28416590 has 16 divisors (see below), whose sum is σ = 53842320. Its totient is φ = 10768320.

The previous prime is 28416527. The next prime is 28416613. The reversal of 28416590 is 9561482.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28416590.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 74591 + ... + 74970.

It is an arithmetic number, because the mean of its divisors is an integer number (3365145).

Almost surely, 2^28416590 is an apocalyptic number.

28416590 is a deficient number, since it is larger than the sum of its proper divisors (25425730).

28416590 is a wasteful number, since it uses less digits than its factorization.

28416590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149587.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 28416590 is about 5330.7213395562. The cubic root of 28416590 is about 305.1574569946.

The spelling of 28416590 in words is "twenty-eight million, four hundred sixteen thousand, five hundred ninety".