33994240 has 120 divisors (see below), whose sum is σ = 95163552. Its totient is φ = 11612160.

The previous prime is 33994193. The next prime is 33994241. The reversal of 33994240 is 4249933.

It is a junction number, because it is equal to n+sod(n) for n = 33994196 and 33994205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33994241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125305 + ... + 125575.

Almost surely, 2^33994240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33994240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47581776).

33994240 is an abundant number, since it is smaller than the sum of its proper divisors (61169312).

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

33994240 is an equidigital number, since it uses as much as digits as its factorization.

33994240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 33994240 is about 5830.4579579995. The cubic root of 33994240 is about 323.9428848162.

The spelling of 33994240 in words is "thirty-three million, nine hundred ninety-four thousand, two hundred forty".