1436004 has 36 divisors (see below), whose sum is σ = 3672396. Its totient is φ = 473088.

The previous prime is 1436003. The next prime is 1436021. The reversal of 1436004 is 4006341.

It can be written as a sum of positive squares in 2 ways, for example, as 230400 + 1205604 = 480^2 + 1098^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1436003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3892 + ... + 4244.

It is an arithmetic number, because the mean of its divisors is an integer number (102011).

2^1436004 is an apocalyptic number.

It is an amenable number.

1436004 is an abundant number, since it is smaller than the sum of its proper divisors (2236392).

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

1436004 is a wasteful number, since it uses less digits than its factorization.

1436004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 471 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1436004 is about 1198.3338433008. Note that the first 3 decimals coincide. The cubic root of 1436004 is about 112.8197716964.

The spelling of 1436004 in words is "one million, four hundred thirty-six thousand, four".