1066645392 has 40 divisors (see below), whose sum is σ = 2756802720. Its totient is φ = 355380480.
The previous prime is 1066645379. The next prime is 1066645403. The reversal of 1066645392 is 2935466601.
It is a super-2 number, since 2×10666453922 = 2275464784549667328, which contains 22 as substring.
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, 137292 + ... + 144852.
It is an arithmetic number, because the mean of its divisors is an integer number (68920068).
Almost surely, 21066645392 is an apocalyptic number.
1066645392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
1066645392 is an abundant number, since it is smaller than the sum of its proper divisors (1690157328).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1066645392 is a wasteful number, since it uses less digits than its factorization.
1066645392 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 10511 (or 10505 counting only the distinct ones).
The product of its (nonzero) digits is 233280, while the sum is 42.
The square root of 1066645392 is about 32659.5375349989. The cubic root of 1066645392 is about 1021.7391169055.
The spelling of 1066645392 in words is "one billion, sixty-six million, six hundred forty-five thousand, three hundred ninety-two".
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