2240520 has 32 divisors (see below), whose sum is σ = 6721920. Its totient is φ = 597440.

The previous prime is 2240507. The next prime is 2240531. The reversal of 2240520 is 250422.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2240520.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9216 + ... + 9455.

It is an arithmetic number, because the mean of its divisors is an integer number (210060).

2^2240520 is an apocalyptic number.

2240520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2240520 is an abundant number, since it is smaller than the sum of its proper divisors (4481400).

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

2240520 is a wasteful number, since it uses less digits than its factorization.

2240520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18685 (or 18681 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 2240520 is about 1496.8366644360. The cubic root of 2240520 is about 130.8527763532.

Adding to 2240520 its reverse (250422), we get a palindrome (2490942).

The spelling of 2240520 in words is "two million, two hundred forty thousand, five hundred twenty".