33142818 has 8 divisors (see below), whose sum is σ = 66285648. Its totient is φ = 11047604.

The previous prime is 33142789. The next prime is 33142829. The reversal of 33142818 is 81824133.

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

33142818 is an admirable number.

It is a super-2 number, since 2×33142818² = 2196892769962248, 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, 2761896 + ... + 2761907.

It is an arithmetic number, because the mean of its divisors is an integer number (8285706).

Almost surely, 2^33142818 is an apocalyptic number.

33142818 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.

33142818 is a wasteful number, since it uses less digits than its factorization.

33142818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5523808.

The product of its digits is 4608, while the sum is 30.

The square root of 33142818 is about 5756.9799374325. The cubic root of 33142818 is about 321.2154879224.

The spelling of 33142818 in words is "thirty-three million, one hundred forty-two thousand, eight hundred eighteen".