8269240 has 48 divisors (see below), whose sum is σ = 21648600. Its totient is φ = 2834496.

The previous prime is 8269231. The next prime is 8269243. The reversal of 8269240 is 429628.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8269243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150 + ... + 4069.

Almost surely, 2^8269240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8269240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10824300).

8269240 is an abundant number, since it is smaller than the sum of its proper divisors (13379360).

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

8269240 is a wasteful number, since it uses less digits than its factorization.

8269240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4244 (or 4233 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 8269240 is about 2875.6286269266. The cubic root of 8269240 is about 202.2189567739.

The spelling of 8269240 in words is "eight million, two hundred sixty-nine thousand, two hundred forty".