8244240 has 40 divisors (see below), whose sum is σ = 25557888. Its totient is φ = 2198400.

The previous prime is 8244221. The next prime is 8244263. The reversal of 8244240 is 424428.

It is a tau number, because it is divible by the number of its divisors (40).

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 8244240.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16936 + ... + 17415.

Almost surely, 2^8244240 is an apocalyptic number.

8244240 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8244240 is an abundant number, since it is smaller than the sum of its proper divisors (17313648).

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

8244240 is a wasteful number, since it uses less digits than its factorization.

8244240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34367 (or 34361 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 8244240 is about 2871.2784608951. The cubic root of 8244240 is about 202.0149647444.

Adding to 8244240 its reverse (424428), we get a palindrome (8668668).

The spelling of 8244240 in words is "eight million, two hundred forty-four thousand, two hundred forty".