422182722644 has 24 divisors (see below), whose sum is σ = 753047954568. Its totient is φ = 207029214080.

The previous prime is 422182722631. The next prime is 422182722683. The reversal of 422182722644 is 446227281224.

It can be written as a sum of positive squares in 4 ways, for example, as 312861235600 + 109321487044 = 559340^2 + 330638^2 .

It is a junction number, because it is equal to n+sod(n) for n = 422182722595 and 422182722604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175754 + ... + 935550.

It is an arithmetic number, because the mean of its divisors is an integer number (31376998107).

Almost surely, 2^422182722644 is an apocalyptic number.

It is an amenable number.

422182722644 is a deficient number, since it is larger than the sum of its proper divisors (330865231924).

422182722644 is a wasteful number, since it uses less digits than its factorization.

422182722644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762475 (or 762473 counting only the distinct ones).

The product of its digits is 688128, while the sum is 44.

The spelling of 422182722644 in words is "four hundred twenty-two billion, one hundred eighty-two million, seven hundred twenty-two thousand, six hundred forty-four".