1409504 has 24 divisors (see below), whose sum is σ = 2939328. Its totient is φ = 663040.

The previous prime is 1409503. The next prime is 1409519. The reversal of 1409504 is 4059041.

It is a happy number.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1409504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1409503) 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, 752 + ... + 1839.

It is an arithmetic number, because the mean of its divisors is an integer number (122472).

2^1409504 is an apocalyptic number.

It is an amenable number.

1409504 is an abundant number, since it is smaller than the sum of its proper divisors (1529824).

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

1409504 is a wasteful number, since it uses less digits than its factorization.

1409504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2618 (or 2610 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1409504 is about 1187.2253366569. The cubic root of 1409504 is about 112.1214668579.

The spelling of 1409504 in words is "one million, four hundred nine thousand, five hundred four".