28966590 has 24 divisors (see below), whose sum is σ = 75313368. Its totient is φ = 7724400.

The previous prime is 28966577. The next prime is 28966631. The reversal of 28966590 is 9566982.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 160836 + ... + 161015.

It is an arithmetic number, because the mean of its divisors is an integer number (3138057).

Almost surely, 2^28966590 is an apocalyptic number.

28966590 is an abundant number, since it is smaller than the sum of its proper divisors (46346778).

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

28966590 is a wasteful number, since it uses less digits than its factorization.

28966590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321864 (or 321861 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 28966590 is about 5382.0618725540. The cubic root of 28966590 is about 307.1136532021.

The spelling of 28966590 in words is "twenty-eight million, nine hundred sixty-six thousand, five hundred ninety".