1069706988 has 144 divisors (see below), whose sum is σ = 3155443200. Its totient is φ = 299261952.

The previous prime is 1069706969. The next prime is 1069706999. The reversal of 1069706988 is 8896079601.

It is a super-2 number, since 2×1069706988² = 2288546080352064288, which contains 22 as substring.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 4162156 + ... + 4162412.

It is an arithmetic number, because the mean of its divisors is an integer number (21912800).

Almost surely, 2^1069706988 is an apocalyptic number.

1069706988 is a gapful number since it is divisible by the number (18) 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 1069706988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1577721600).

1069706988 is an abundant number, since it is smaller than the sum of its proper divisors (2085736212).

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

1069706988 is a wasteful number, since it uses less digits than its factorization.

1069706988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556 (or 551 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 1069706988 is about 32706.3753418198. The cubic root of 1069706988 is about 1022.7157502098.

The spelling of 1069706988 in words is "one billion, sixty-nine million, seven hundred six thousand, nine hundred eighty-eight".