1022146728 has 64 divisors (see below), whose sum is σ = 2624832000. Its totient is φ = 331499520.

The previous prime is 1022146691. The next prime is 1022146751. The reversal of 1022146728 is 8276412201.

It is a super-2 number, since 2×1022146728² = 2089567867122211968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 424873 + ... + 427271.

It is an arithmetic number, because the mean of its divisors is an integer number (41013000).

Almost surely, 2^1022146728 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 1022146728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1312416000).

1022146728 is an abundant number, since it is smaller than the sum of its proper divisors (1602685272).

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

1022146728 is a wasteful number, since it uses less digits than its factorization.

1022146728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2882 (or 2878 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 1022146728 is about 31971.0295111058. The cubic root of 1022146728 is about 1007.3284059410.

Adding to 1022146728 its reverse (8276412201), we get a palindrome (9298558929).

The spelling of 1022146728 in words is "one billion, twenty-two million, one hundred forty-six thousand, seven hundred twenty-eight".