1822572036 has 72 divisors (see below), whose sum is σ = 4987076640. Its totient is φ = 575536752.

The previous prime is 1822572029. The next prime is 1822572041. The reversal of 1822572036 is 6302752281.

1822572036 is a `hidden beast` number, since 1 + 82 + 2 + 572 + 0 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 15615 + ... + 62361.

Almost surely, 2^1822572036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1822572036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2493538320).

1822572036 is an abundant number, since it is smaller than the sum of its proper divisors (3164504604).

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

1822572036 is a wasteful number, since it uses less digits than its factorization.

1822572036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46798 (or 46771 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 1822572036 is about 42691.5920996161. The cubic root of 1822572036 is about 1221.5040207361.

The spelling of 1822572036 in words is "one billion, eight hundred twenty-two million, five hundred seventy-two thousand, thirty-six".