33861904 has 20 divisors (see below), whose sum is σ = 65777040. Its totient is φ = 16887200.

The previous prime is 33861887. The next prime is 33861907. The reversal of 33861904 is 40916833.

It is a super-2 number, since 2×33861904² = 2293257085010432, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33861904.

It is not an unprimeable number, because it can be changed into a prime (33861907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4179 + ... + 9229.

It is an arithmetic number, because the mean of its divisors is an integer number (3288852).

Almost surely, 2^33861904 is an apocalyptic number.

It is an amenable number.

33861904 is a deficient number, since it is larger than the sum of its proper divisors (31915136).

33861904 is a wasteful number, since it uses less digits than its factorization.

33861904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5478 (or 5472 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 33861904 is about 5819.0982119225. The cubic root of 33861904 is about 323.5219796393.

The spelling of 33861904 in words is "thirty-three million, eight hundred sixty-one thousand, nine hundred four".