1066910940 has 72 divisors (see below), whose sum is σ = 3356174640. Its totient is φ = 284508288.

The previous prime is 1066910921. The next prime is 1066910941. The reversal of 1066910940 is 490196601.

It is a super-2 number, since 2×1066910940² = 2276597907783367200, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 1066910895 and 1066910904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066910941) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 104905 + ... + 114624.

Almost surely, 2^1066910940 is an apocalyptic number.

1066910940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1066910940 is an abundant number, since it is smaller than the sum of its proper divisors (2289263700).

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

1066910940 is a wasteful number, since it uses less digits than its factorization.

1066910940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219553 (or 219539 counting only the distinct ones).

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

The square root of 1066910940 is about 32663.6026794351. The cubic root of 1066910940 is about 1021.8238993048.

It can be divided in two parts, 10669 and 10940, that added together give a square (21609 = 147²).

The spelling of 1066910940 in words is "one billion, sixty-six million, nine hundred ten thousand, nine hundred forty".