1033340081 has 4 divisors (see below), whose sum is σ = 1066673664. Its totient is φ = 1000006500.

The previous prime is 1033340059. The next prime is 1033340117. The reversal of 1033340081 is 1800433301.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1033340081 - 2⁶ = 1033340017 is a prime.

It is a super-2 number, since 2×1033340081² = 2135583446002173122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1033340681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16666745 + ... + 16666806.

It is an arithmetic number, because the mean of its divisors is an integer number (266668416).

Almost surely, 2^1033340081 is an apocalyptic number.

It is an amenable number.

1033340081 is a deficient number, since it is larger than the sum of its proper divisors (33333583).

1033340081 is an equidigital number, since it uses as much as digits as its factorization.

1033340081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33333582.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1033340081 is about 32145.6074915376. The cubic root of 1033340081 is about 1010.9920915463.

Adding to 1033340081 its reverse (1800433301), we get a palindrome (2833773382).

The spelling of 1033340081 in words is "one billion, thirty-three million, three hundred forty thousand, eighty-one".