1066909212 has 48 divisors (see below), whose sum is σ = 2824926720. Its totient is φ = 348068016.

The previous prime is 1066909201. The next prime is 1066909229. The reversal of 1066909212 is 2129096601.

It is a super-2 number, since 2×1066909212² = 2276590533300921888, which contains 22 as substring.

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, 100018 + ... + 110169.

It is an arithmetic number, because the mean of its divisors is an integer number (58852640).

Almost surely, 2^1066909212 is an apocalyptic number.

1066909212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1066909212 is an abundant number, since it is smaller than the sum of its proper divisors (1758017508).

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

1066909212 is a wasteful number, since it uses less digits than its factorization.

1066909212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210247 (or 210239 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 1066909212 is about 32663.5762279638. The cubic root of 1066909212 is about 1021.8233476459.

The spelling of 1066909212 in words is "one billion, sixty-six million, nine hundred nine thousand, two hundred twelve".