1404828 has 18 divisors (see below), whose sum is σ = 3551184. Its totient is φ = 468264.

The previous prime is 1404811. The next prime is 1404833. The reversal of 1404828 is 8284041.

It is a tau number, because it is divible by the number of its divisors (18).

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 congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19476 + ... + 19547.

It is an arithmetic number, because the mean of its divisors is an integer number (197288).

2^1404828 is an apocalyptic number.

1404828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1404828 is an abundant number, since it is smaller than the sum of its proper divisors (2146356).

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

1404828 is a wasteful number, since it uses less digits than its factorization.

1404828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39033 (or 39028 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 1404828 is about 1185.2544030713. The cubic root of 1404828 is about 111.9973426240.

Adding to 1404828 its reverse (8284041), we get a palindrome (9688869).

The spelling of 1404828 in words is "one million, four hundred four thousand, eight hundred twenty-eight".