1404256 has 24 divisors (see below), whose sum is σ = 3160080. Its totient is φ = 601728.

The previous prime is 1404229. The next prime is 1404257. The reversal of 1404256 is 6524041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1404257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2911 + ... + 3358.

It is an arithmetic number, because the mean of its divisors is an integer number (131670).

2^1404256 is an apocalyptic number.

1404256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1404256 is an abundant number, since it is smaller than the sum of its proper divisors (1755824).

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

1404256 is an equidigital number, since it uses as much as digits as its factorization.

1404256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6286 (or 6278 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1404256 is about 1185.0130800966. The cubic root of 1404256 is about 111.9821400093.

Adding to 1404256 its reverse (6524041), we get a palindrome (7928297).

The spelling of 1404256 in words is "one million, four hundred four thousand, two hundred fifty-six".