33801018 has 8 divisors (see below), whose sum is σ = 67602048. Its totient is φ = 11267004.

The previous prime is 33801011. The next prime is 33801029. The reversal of 33801018 is 81010833.

It is a sphenic number, since it is the product of 3 distinct primes.

33801018 is an admirable number.

It is a super-2 number, since 2×33801018² = 2285017635672648, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33801011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2816746 + ... + 2816757.

It is an arithmetic number, because the mean of its divisors is an integer number (8450256).

Almost surely, 2^33801018 is an apocalyptic number.

33801018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

33801018 is a wasteful number, since it uses less digits than its factorization.

33801018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5633508.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 33801018 is about 5813.8642915018. The cubic root of 33801018 is about 323.3279584846.

The spelling of 33801018 in words is "thirty-three million, eight hundred one thousand, eighteen".