1066777340 has 24 divisors (see below), whose sum is σ = 2300780832. Its totient is φ = 415177920.

The previous prime is 1066777297. The next prime is 1066777357. The reversal of 1066777340 is 437776601.

It is a super-2 number, since 2×1066777340² = 2276027786274951200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 720056 + ... + 721535.

It is an arithmetic number, because the mean of its divisors is an integer number (95865868).

Almost surely, 2^1066777340 is an apocalyptic number.

1066777340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1066777340 is an abundant number, since it is smaller than the sum of its proper divisors (1234003492).

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

1066777340 is a wasteful number, since it uses less digits than its factorization.

1066777340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441637 (or 1441635 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 41.

The square root of 1066777340 is about 32661.5575256294. The cubic root of 1066777340 is about 1021.7812461440.

The spelling of 1066777340 in words is "one billion, sixty-six million, seven hundred seventy-seven thousand, three hundred forty".