1404243 has 8 divisors (see below), whose sum is σ = 2080400. Its totient is φ = 936144.

The previous prime is 1404229. The next prime is 1404257. The reversal of 1404243 is 3424041.

It is an interprime number because it is at equal distance from previous prime (1404229) and next prime (1404257).

It is not a de Polignac number, because 1404243 - 2⁵ = 1404211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1404283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25978 + ... + 26031.

It is an arithmetic number, because the mean of its divisors is an integer number (260050).

2^1404243 is an apocalyptic number.

1404243 is a deficient number, since it is larger than the sum of its proper divisors (676157).

1404243 is an equidigital number, since it uses as much as digits as its factorization.

1404243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52018 (or 52012 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1404243 is about 1185.0075949124. The cubic root of 1404243 is about 111.9817944473.

Subtracting from 1404243 its sum of digits (18), we obtain a square (1404225 = 1185²).

Adding to 1404243 its reverse (3424041), we get a palindrome (4828284).

The spelling of 1404243 in words is "one million, four hundred four thousand, two hundred forty-three".