33489340 has 24 divisors (see below), whose sum is σ = 70741440. Its totient is φ = 13316928.

The previous prime is 33489319. The next prime is 33489341. The reversal of 33489340 is 4398433.

It is a super-3 number, since 3×33489340³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 33489296 and 33489305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33489341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1380 + ... + 8299.

It is an arithmetic number, because the mean of its divisors is an integer number (2947560).

Almost surely, 2^33489340 is an apocalyptic number.

It is an amenable number.

33489340 is an abundant number, since it is smaller than the sum of its proper divisors (37252100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33489340 is a wasteful number, since it uses less digits than its factorization.

33489340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9861 (or 9859 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 33489340 is about 5786.9974943834. The cubic root of 33489340 is about 322.3310895622.

The spelling of 33489340 in words is "thirty-three million, four hundred eighty-nine thousand, three hundred forty".