1822516 has 12 divisors (see below), whose sum is σ = 3199588. Its totient is φ = 908352.

The previous prime is 1822501. The next prime is 1822517. The reversal of 1822516 is 6152281.

It can be written as a sum of positive squares in 2 ways, for example, as 1572516 + 250000 = 1254^2 + 500^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1822517) 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 3 ways as a sum of consecutive naturals, for example, 1330 + ... + 2326.

2^1822516 is an apocalyptic number.

It is an amenable number.

1822516 is a deficient number, since it is larger than the sum of its proper divisors (1377072).

1822516 is a wasteful number, since it uses less digits than its factorization.

1822516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1458 (or 1456 counting only the distinct ones).

The product of its digits is 960, while the sum is 25.

The square root of 1822516 is about 1350.0059259129. The cubic root of 1822516 is about 122.1491501999.

Adding to 1822516 its reverse (6152281), we get a palindrome (7974797).

It can be divided in two parts, 18225 and 16, that multiplied together give a square (291600 = 540²).

The spelling of 1822516 in words is "one million, eight hundred twenty-two thousand, five hundred sixteen".