1925604 has 36 divisors (see below), whose sum is σ = 4930380. Its totient is φ = 633600.

The previous prime is 1925603. The next prime is 1925611. The reversal of 1925604 is 4065291.

It can be written as a sum of positive squares in 2 ways, for example, as 1004004 + 921600 = 1002^2 + 960^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1925603) 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, 2904 + ... + 3504.

It is an arithmetic number, because the mean of its divisors is an integer number (136955).

2^1925604 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 1925604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2465190).

1925604 is an abundant number, since it is smaller than the sum of its proper divisors (3004776).

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

1925604 is a wasteful number, since it uses less digits than its factorization.

1925604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700 (or 695 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1925604 is about 1387.6613419707. The cubic root of 1925604 is about 124.4101059121.

The spelling of 1925604 in words is "one million, nine hundred twenty-five thousand, six hundred four".