1022251888 has 80 divisors (see below), whose sum is σ = 2404131840. Its totient is φ = 411061248.

The previous prime is 1022251861. The next prime is 1022251907. The reversal of 1022251888 is 8881522201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 835245 + ... + 836467.

It is an arithmetic number, because the mean of its divisors is an integer number (30051648).

Almost surely, 2^1022251888 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 1022251888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1202065920).

1022251888 is an abundant number, since it is smaller than the sum of its proper divisors (1381879952).

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

1022251888 is a wasteful number, since it uses less digits than its factorization.

1022251888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694 (or 1688 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 37.

The square root of 1022251888 is about 31972.6740827226. The cubic root of 1022251888 is about 1007.3629499126.

The spelling of 1022251888 in words is "one billion, twenty-two million, two hundred fifty-one thousand, eight hundred eighty-eight".