1819252 has 12 divisors (see below), whose sum is σ = 3261636. Its totient is φ = 887360.

The previous prime is 1819217. The next prime is 1819261. The reversal of 1819252 is 2529181.

It can be written as a sum of positive squares in 2 ways, for example, as 729316 + 1089936 = 854^2 + 1044^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1819252.

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 3 ways as a sum of consecutive naturals, for example, 5383 + ... + 5710.

It is an arithmetic number, because the mean of its divisors is an integer number (271803).

2^1819252 is an apocalyptic number.

It is an amenable number.

1819252 is a deficient number, since it is larger than the sum of its proper divisors (1442384).

1819252 is a wasteful number, since it uses less digits than its factorization.

1819252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11138 (or 11136 counting only the distinct ones).

The product of its digits is 1440, while the sum is 28.

The square root of 1819252 is about 1348.7965005886. The cubic root of 1819252 is about 122.0761864006.

The spelling of 1819252 in words is "one million, eight hundred nineteen thousand, two hundred fifty-two".