1081662329 has 32 divisors (see below), whose sum is σ = 1266330240. Its totient is φ = 914457600.

The previous prime is 1081662313. The next prime is 1081662353. The reversal of 1081662329 is 9232661801.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1081662329 - 2⁴ = 1081662313 is a prime.

It is a super-3 number, since 3×1081662329³ (a number of 28 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1081662292 and 1081662301.

It is not an unprimeable number, because it can be changed into a prime (1081662359) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1333334 + ... + 1334144.

It is an arithmetic number, because the mean of its divisors is an integer number (39572820).

Almost surely, 2^1081662329 is an apocalyptic number.

It is an amenable number.

1081662329 is a deficient number, since it is larger than the sum of its proper divisors (184667911).

1081662329 is a wasteful number, since it uses less digits than its factorization.

1081662329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 1081662329 is about 32888.6352559665. The cubic root of 1081662329 is about 1026.5116949400.

The spelling of 1081662329 in words is "one billion, eighty-one million, six hundred sixty-two thousand, three hundred twenty-nine".