1930625 has 10 divisors (see below), whose sum is σ = 2413290. Its totient is φ = 1544000.

The previous prime is 1930603. The next prime is 1930627. The reversal of 1930625 is 5260391.

It can be written as a sum of positive squares in 5 ways, for example, as 332929 + 1597696 = 577^2 + 1264^2 .

It is not a de Polignac number, because 1930625 - 2¹⁰ = 1929601 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1930594 and 1930603.

It is not an unprimeable number, because it can be changed into a prime (1930627) 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 9 ways as a sum of consecutive naturals, for example, 920 + ... + 2169.

It is an arithmetic number, because the mean of its divisors is an integer number (241329).

2^1930625 is an apocalyptic number.

It is an amenable number.

1930625 is a deficient number, since it is larger than the sum of its proper divisors (482665).

1930625 is an frugal number, since it uses more digits than its factorization.

1930625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3109 (or 3094 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 1930625 is about 1389.4693231590. The cubic root of 1930625 is about 124.5181449122.

The spelling of 1930625 in words is "one million, nine hundred thirty thousand, six hundred twenty-five".