1840625 has 24 divisors (see below), whose sum is σ = 2499840. Its totient is φ = 1350000.

The previous prime is 1840603. The next prime is 1840633. The reversal of 1840625 is 5260481.

It is not a de Polignac number, because 1840625 - 2⁶ = 1840561 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1840594 and 1840603.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 59360 + ... + 59390.

It is an arithmetic number, because the mean of its divisors is an integer number (104160).

2^1840625 is an apocalyptic number.

It is an amenable number.

1840625 is a deficient number, since it is larger than the sum of its proper divisors (659215).

1840625 is an frugal number, since it uses more digits than its factorization.

1840625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75 (or 55 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1840625 is about 1356.6963551215. The cubic root of 1840625 is about 122.5523863127.

The spelling of 1840625 in words is "one million, eight hundred forty thousand, six hundred twenty-five".