1822512 has 40 divisors (see below), whose sum is σ = 4823104. Its totient is φ = 592704.

The previous prime is 1822501. The next prime is 1822517. The reversal of 1822512 is 2152281.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1822517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1623 + ... + 2505.

2^1822512 is an apocalyptic number.

1822512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1822512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2411552).

1822512 is an abundant number, since it is smaller than the sum of its proper divisors (3000592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1822512 is a wasteful number, since it uses less digits than its factorization.

1822512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937 (or 931 counting only the distinct ones).

The product of its digits is 320, while the sum is 21.

The square root of 1822512 is about 1350.0044444371. The cubic root of 1822512 is about 122.1490608368.

Adding to 1822512 its reverse (2152281), we get a palindrome (3974793).

The spelling of 1822512 in words is "one million, eight hundred twenty-two thousand, five hundred twelve".