1404242 has 32 divisors (see below), whose sum is σ = 2592000. Its totient is φ = 569184.

The previous prime is 1404229. The next prime is 1404257. The reversal of 1404242 is 2424041.

1404242 is a modest number, since divided by 4242 gives 140 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 1404242.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 15734 + ... + 15822.

It is an arithmetic number, because the mean of its divisors is an integer number (81000).

2^1404242 is an apocalyptic number.

1404242 is a deficient number, since it is larger than the sum of its proper divisors (1187758).

1404242 is an equidigital number, since it uses as much as digits as its factorization.

1404242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 1404242 is about 1185.0071729741. The cubic root of 1404242 is about 111.9817678655.

Subtracting from 1404242 its sum of digits (17), we obtain a square (1404225 = 1185²).

Adding to 1404242 its reverse (2424041), we get a palindrome (3828283).

The spelling of 1404242 in words is "one million, four hundred four thousand, two hundred forty-two".