1822122648 has 64 divisors (see below), whose sum is σ = 5327856000. Its totient is φ = 575405856.

The previous prime is 1822122647. The next prime is 1822122661. The reversal of 1822122648 is 8462212281.

1822122648 is a `hidden beast` number, since 1 + 8 + 2 + 2 + 1 + 2 + 2 + 648 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1822122647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217890 + ... + 226097.

It is an arithmetic number, because the mean of its divisors is an integer number (83247750).

Almost surely, 2^1822122648 is an apocalyptic number.

1822122648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1822122648 is an abundant number, since it is smaller than the sum of its proper divisors (3505733352).

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

1822122648 is a wasteful number, since it uses less digits than its factorization.

1822122648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444021 (or 444011 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 1822122648 is about 42686.3285842200. The cubic root of 1822122648 is about 1221.4036178695.

It can be divided in two parts, 182 and 2122648, that added together give a triangular number (2122830 = T₂₀₆₀).

The spelling of 1822122648 in words is "one billion, eight hundred twenty-two million, one hundred twenty-two thousand, six hundred forty-eight".