2240140 has 24 divisors (see below), whose sum is σ = 5376672. Its totient is φ = 768000.

The previous prime is 2240137. The next prime is 2240159. The reversal of 2240140 is 410422.

It is a self number, because there is not a number n which added to its sum of digits gives 2240140.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7861 + ... + 8140.

It is an arithmetic number, because the mean of its divisors is an integer number (224028).

2^2240140 is an apocalyptic number.

2240140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2240140 is an abundant number, since it is smaller than the sum of its proper divisors (3136532).

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

2240140 is a wasteful number, since it uses less digits than its factorization.

2240140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16017 (or 16015 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 2240140 is about 1496.7097246961. The cubic root of 2240140 is about 130.8453782393.

Adding to 2240140 its reverse (410422), we get a palindrome (2650562).

It can be divided in two parts, 2240 and 140, that multiplied together give a square (313600 = 560²).

The spelling of 2240140 in words is "two million, two hundred forty thousand, one hundred forty".