33900340 has 24 divisors (see below), whose sum is σ = 72848160. Its totient is φ = 13244448.

The previous prime is 33900319. The next prime is 33900341. The reversal of 33900340 is 4300933.

It is a super-2 number, since 2×33900340² = 2298466104231200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33900341) 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, 18850 + ... + 20569.

It is an arithmetic number, because the mean of its divisors is an integer number (3035340).

Almost surely, 2^33900340 is an apocalyptic number.

It is an amenable number.

33900340 is an abundant number, since it is smaller than the sum of its proper divisors (38947820).

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

33900340 is a wasteful number, since it uses less digits than its factorization.

33900340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39471 (or 39469 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

The square root of 33900340 is about 5822.3998488596. The cubic root of 33900340 is about 323.6443412260.

The spelling of 33900340 in words is "thirty-three million, nine hundred thousand, three hundred forty".