1022866272 has 96 divisors (see below), whose sum is σ = 2996753760. Its totient is φ = 339425280.

The previous prime is 1022866267. The next prime is 1022866283. The reversal of 1022866272 is 2726682201.

1022866272 is a `hidden beast` number, since 1 + 0 + 2 + 28 + 6 + 627 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 198772 + ... + 203852.

It is an arithmetic number, because the mean of its divisors is an integer number (31216185).

Almost surely, 2^1022866272 is an apocalyptic number.

1022866272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1022866272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1498376880).

1022866272 is an abundant number, since it is smaller than the sum of its proper divisors (1973887488).

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

1022866272 is a wasteful number, since it uses less digits than its factorization.

1022866272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5333 (or 5319 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 1022866272 is about 31982.2805941040. The cubic root of 1022866272 is about 1007.5647213603.

The spelling of 1022866272 in words is "one billion, twenty-two million, eight hundred sixty-six thousand, two hundred seventy-two".