1325904 has 40 divisors (see below), whose sum is σ = 3577152. Its totient is φ = 422400.

The previous prime is 1325903. The next prime is 1325911. The reversal of 1325904 is 4095231.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325903) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504 + ... + 1704.

2^1325904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1325904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1788576).

1325904 is an abundant number, since it is smaller than the sum of its proper divisors (2251248).

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

1325904 is a wasteful number, since it uses less digits than its factorization.

1325904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235 (or 1229 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1325904 is about 1151.4790488758. The cubic root of 1325904 is about 109.8594347781.

The spelling of 1325904 in words is "one million, three hundred twenty-five thousand, nine hundred four".