33298240 has 56 divisors (see below), whose sum is σ = 83969352. Its totient is φ = 12533760.

The previous prime is 33298229. The next prime is 33298267. The reversal of 33298240 is 4289233.

It can be written as a sum of positive squares in 4 ways, for example, as 2027776 + 31270464 = 1424^2 + 5592^2 .

It is a super-2 number, since 2×33298240² = 2217545574195200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2380 + ... + 8500.

Almost surely, 2^33298240 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 33298240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41984676).

33298240 is an abundant number, since it is smaller than the sum of its proper divisors (50671112).

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

33298240 is a wasteful number, since it uses less digits than its factorization.

33298240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6155 (or 6145 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 33298240 is about 5770.4627197479. The cubic root of 33298240 is about 321.7168144080.

The spelling of 33298240 in words is "thirty-three million, two hundred ninety-eight thousand, two hundred forty".