1405004 has 12 divisors (see below), whose sum is σ = 2472624. Its totient is φ = 698544.

The previous prime is 1404989. The next prime is 1405007. The reversal of 1405004 is 4005041.

It is a self number, because there is not a number n which added to its sum of digits gives 1405004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1405007) 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, 104 + ... + 1679.

It is an arithmetic number, because the mean of its divisors is an integer number (206052).

2^1405004 is an apocalyptic number.

It is an amenable number.

1405004 is a deficient number, since it is larger than the sum of its proper divisors (1067620).

1405004 is a wasteful number, since it uses less digits than its factorization.

1405004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984 (or 1982 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 1405004 is about 1185.3286464099. The cubic root of 1405004 is about 112.0020195214.

The spelling of 1405004 in words is "one million, four hundred five thousand, four".