33120290 has 16 divisors (see below), whose sum is σ = 68133312. Its totient is φ = 11355504.

The previous prime is 33120281. The next prime is 33120313. The reversal of 33120290 is 9202133.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 236504 + ... + 236643.

It is an arithmetic number, because the mean of its divisors is an integer number (4258332).

Almost surely, 2^33120290 is an apocalyptic number.

33120290 is an abundant number, since it is smaller than the sum of its proper divisors (35013022).

33120290 is a wasteful number, since it uses less digits than its factorization.

33120290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473161.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 33120290 is about 5755.0230234118. The cubic root of 33120290 is about 321.1426920334.

The spelling of 33120290 in words is "thirty-three million, one hundred twenty thousand, two hundred ninety".