1904373 has 6 divisors (see below), whose sum is σ = 2750774. Its totient is φ = 1269576.

The previous prime is 1904311. The next prime is 1904407. The reversal of 1904373 is 3734091.

It can be written as a sum of positive squares in only one way, i.e., 1656369 + 248004 = 1287^2 + 498^2 .

It is not a de Polignac number, because 1904373 - 2⁸ = 1904117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1904473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 105790 + ... + 105807.

2^1904373 is an apocalyptic number.

It is an amenable number.

1904373 is a deficient number, since it is larger than the sum of its proper divisors (846401).

1904373 is a wasteful number, since it uses less digits than its factorization.

1904373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211603 (or 211600 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 1904373 is about 1379.9902173566. The cubic root of 1904373 is about 123.9511817889.

Adding to 1904373 its sum of digits (27), we get a square (1904400 = 1380²).

The spelling of 1904373 in words is "one million, nine hundred four thousand, three hundred seventy-three".