8255040 has 56 divisors (see below), whose sum is σ = 26212800. Its totient is φ = 2201088.

The previous prime is 8255029. The next prime is 8255057. The reversal of 8255040 is 405528.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 8255040.

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, 3340 + ... + 5259.

Almost surely, 2^8255040 is an apocalyptic number.

8255040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8255040 is an abundant number, since it is smaller than the sum of its proper divisors (17957760).

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

8255040 is a wasteful number, since it uses less digits than its factorization.

8255040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8619 (or 8609 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 8255040 is about 2873.1585407005. The cubic root of 8255040 is about 202.1031398260.

The spelling of 8255040 in words is "eight million, two hundred fifty-five thousand, forty".