1404285 has 16 divisors (see below), whose sum is σ = 2379456. Its totient is φ = 704768.

The previous prime is 1404283. The next prime is 1404287. The reversal of 1404285 is 5824041.

1404285 = 391² + 392² + ... + 399².

It is an interprime number because it is at equal distance from previous prime (1404283) and next prime (1404287).

It is a cyclic number.

It is not a de Polignac number, because 1404285 - 2¹ = 1404283 is a prime.

It is a super-2 number, since 2×1404285² = 3944032722450, which contains 22 as substring.

It is a Curzon number.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 2499 + ... + 3008.

It is an arithmetic number, because the mean of its divisors is an integer number (148716).

2^1404285 is an apocalyptic number.

1404285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1404285 is a deficient number, since it is larger than the sum of its proper divisors (975171).

1404285 is a wasteful number, since it uses less digits than its factorization.

1404285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5532.

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 1404285 is about 1185.0253161853. The cubic root of 1404285 is about 111.9829108705.

The spelling of 1404285 in words is "one million, four hundred four thousand, two hundred eighty-five".