1404918 has 16 divisors (see below), whose sum is σ = 3122160. Its totient is φ = 468288.

The previous prime is 1404911. The next prime is 1404919. The reversal of 1404918 is 8194041.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1404891 and 1404900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1404911) 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, 12955 + ... + 13062.

It is an arithmetic number, because the mean of its divisors is an integer number (195135).

2^1404918 is an apocalyptic number.

1404918 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1404918 is an abundant number, since it is smaller than the sum of its proper divisors (1717242).

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

1404918 is a wasteful number, since it uses less digits than its factorization.

1404918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26028 (or 26022 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 1404918 is about 1185.2923689959. The cubic root of 1404918 is about 111.9997342681. Note that the first 3 decimals are identical.

Adding to 1404918 its reverse (8194041), we get a palindrome (9598959).

The spelling of 1404918 in words is "one million, four hundred four thousand, nine hundred eighteen".