33909790 has 8 divisors (see below), whose sum is σ = 61037640. Its totient is φ = 13563912.

The previous prime is 33909779. The next prime is 33909793. The reversal of 33909790 is 9790933.

It is a happy number.

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

It is a super-2 number, since 2×33909790² = 2299747715688200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33909793) 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, 1695480 + ... + 1695499.

It is an arithmetic number, because the mean of its divisors is an integer number (7629705).

Almost surely, 2^33909790 is an apocalyptic number.

33909790 is a deficient number, since it is larger than the sum of its proper divisors (27127850).

33909790 is a wasteful number, since it uses less digits than its factorization.

33909790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3390986.

The product of its (nonzero) digits is 45927, while the sum is 40.

The square root of 33909790 is about 5823.2113133562. The cubic root of 33909790 is about 323.6744112773.

The spelling of 33909790 in words is "thirty-three million, nine hundred nine thousand, seven hundred ninety".