8255240 has 32 divisors (see below), whose sum is σ = 21228480. Its totient is φ = 2830272.

The previous prime is 8255239. The next prime is 8255243. The reversal of 8255240 is 425528.

It is not an unprimeable number, because it can be changed into a prime (8255243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14462 + ... + 15021.

It is an arithmetic number, because the mean of its divisors is an integer number (663390).

Almost surely, 2^8255240 is an apocalyptic number.

It is an amenable number.

8255240 is an abundant number, since it is smaller than the sum of its proper divisors (12973240).

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

8255240 is a wasteful number, since it uses less digits than its factorization.

8255240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29501 (or 29497 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 8255240 is about 2873.1933453912. The cubic root of 8255240 is about 202.1047719724.

The spelling of 8255240 in words is "eight million, two hundred fifty-five thousand, two hundred forty".