822638148 has 24 divisors (see below), whose sum is σ = 2002945728. Its totient is φ = 262290336.

The previous prime is 822638129. The next prime is 822638191. The reversal of 822638148 is 841836228.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1490011 + ... + 1490562.

It is an arithmetic number, because the mean of its divisors is an integer number (83456072).

Almost surely, 2^822638148 is an apocalyptic number.

It is an amenable number.

822638148 is an abundant number, since it is smaller than the sum of its proper divisors (1180307580).

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

822638148 is a wasteful number, since it uses less digits than its factorization.

822638148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2980603 (or 2980601 counting only the distinct ones).

The product of its digits is 147456, while the sum is 42.

The square root of 822638148 is about 28681.6691982876. The cubic root of 822638148 is about 936.9928603617.

The spelling of 822638148 in words is "eight hundred twenty-two million, six hundred thirty-eight thousand, one hundred forty-eight".