1066091930 has 16 divisors (see below), whose sum is σ = 2031846120. Its totient is φ = 401352192.

The previous prime is 1066091893. The next prime is 1066091969. The reversal of 1066091930 is 391906601.

It can be written as a sum of positive squares in 4 ways, for example, as 1001659201 + 64432729 = 31649^2 + 8027^2 .

It is a super-2 number, since 2×1066091930² = 2273104006422249800, which contains 22 as substring.

It is a Curzon 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 7 ways as a sum of consecutive naturals, for example, 3135395 + ... + 3135734.

Almost surely, 2^1066091930 is an apocalyptic number.

1066091930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1066091930 is a deficient number, since it is larger than the sum of its proper divisors (965754190).

1066091930 is a wasteful number, since it uses less digits than its factorization.

1066091930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6271153.

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 1066091930 is about 32651.0632292426. The cubic root of 1066091930 is about 1021.5623660017.

The spelling of 1066091930 in words is "one billion, sixty-six million, ninety-one thousand, nine hundred thirty".