1904725 has 12 divisors (see below), whose sum is σ = 2402500. Its totient is φ = 1497600.

The previous prime is 1904719. The next prime is 1904729. The reversal of 1904725 is 5274091.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 421201 + 1483524 = 649^2 + 1218^2 .

It is not a de Polignac number, because 1904725 - 2⁷ = 1904597 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1904693 and 1904702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1904729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 901 + ... + 2149.

2^1904725 is an apocalyptic number.

It is an amenable number.

1904725 is a deficient number, since it is larger than the sum of its proper divisors (497775).

1904725 is a wasteful number, since it uses less digits than its factorization.

1904725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320 (or 1315 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 1904725 is about 1380.1177485997. The cubic root of 1904725 is about 123.9588182705.

The spelling of 1904725 in words is "one million, nine hundred four thousand, seven hundred twenty-five".