28090350 has 36 divisors (see below), whose sum is σ = 75470616. Its totient is φ = 7490640.

The previous prime is 28090339. The next prime is 28090351. The reversal of 28090350 is 5309082.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28090351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 30762 + ... + 31661.

It is an arithmetic number, because the mean of its divisors is an integer number (2096406).

Almost surely, 2^28090350 is an apocalyptic number.

28090350 is an abundant number, since it is smaller than the sum of its proper divisors (47380266).

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

28090350 is a wasteful number, since it uses less digits than its factorization.

28090350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62441 (or 62433 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 28090350 is about 5300.0330187651. The cubic root of 28090350 is about 303.9851605753.

The spelling of 28090350 in words is "twenty-eight million, ninety thousand, three hundred fifty".