33490018 has 8 divisors (see below), whose sum is σ = 50280912. Its totient is φ = 16729716.

The previous prime is 33490007. The next prime is 33490031. The reversal of 33490018 is 81009433.

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

It is a super-2 number, since 2×33490018² = 2243162611280648, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4680 + ... + 9427.

It is an arithmetic number, because the mean of its divisors is an integer number (6285114).

Almost surely, 2^33490018 is an apocalyptic number.

33490018 is a deficient number, since it is larger than the sum of its proper divisors (16790894).

33490018 is a wasteful number, since it uses less digits than its factorization.

33490018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15296.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 33490018 is about 5787.0560736872. The cubic root of 33490018 is about 322.3332647718. Note that the first 3 decimals are identical.

The spelling of 33490018 in words is "thirty-three million, four hundred ninety thousand, eighteen".