8390268 has 36 divisors (see below), whose sum is σ = 21785400. Its totient is φ = 2720736.

The previous prime is 8390257. The next prime is 8390273. The reversal of 8390268 is 8620938.

8390268 is a `hidden beast` number, since 8 + 390 + 268 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×8390268² = 140793194223648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1818 + ... + 4481.

It is an arithmetic number, because the mean of its divisors is an integer number (605150).

Almost surely, 2^8390268 is an apocalyptic number.

It is an amenable number.

8390268 is an abundant number, since it is smaller than the sum of its proper divisors (13395132).

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

8390268 is a wasteful number, since it uses less digits than its factorization.

8390268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6346 (or 6341 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 8390268 is about 2896.5959331602. The cubic root of 8390268 is about 203.2007365071.

The spelling of 8390268 in words is "eight million, three hundred ninety thousand, two hundred sixty-eight".