1022217944 has 32 divisors (see below), whose sum is σ = 2147418000. Its totient is φ = 452085120.

The previous prime is 1022217923. The next prime is 1022217947. The reversal of 1022217944 is 4497122201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1022217944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022217947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153719 + ... + 160230.

Almost surely, 2^1022217944 is an apocalyptic number.

It is an amenable number.

1022217944 is an abundant number, since it is smaller than the sum of its proper divisors (1125200056).

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

1022217944 is a wasteful number, since it uses less digits than its factorization.

1022217944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314003 (or 313999 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 1022217944 is about 31972.1432500231. The cubic root of 1022217944 is about 1007.3517999189.

The spelling of 1022217944 in words is "one billion, twenty-two million, two hundred seventeen thousand, nine hundred forty-four".