2240042 has 24 divisors (see below), whose sum is σ = 3994848. Its totient is φ = 922320.

The previous prime is 2240027. The next prime is 2240057. The reversal of 2240042 is 2400422.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2240027) and next prime (2240057).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 2239999 and 2240026.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36692 + ... + 36752.

It is an arithmetic number, because the mean of its divisors is an integer number (166452).

2^2240042 is an apocalyptic number.

2240042 is a deficient number, since it is larger than the sum of its proper divisors (1754806).

2240042 is an equidigital number, since it uses as much as digits as its factorization.

2240042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 2240042 is about 1496.6769858590. The cubic root of 2240042 is about 130.8434701690.

Adding to 2240042 its reverse (2400422), we get a palindrome (4640464).

It can be divided in two parts, 2 and 240042, that multiplied together give a palindrome (480084).

The spelling of 2240042 in words is "two million, two hundred forty thousand, forty-two".