33258240 has 108 divisors (see below), whose sum is σ = 115109904. Its totient is φ = 8865792.

The previous prime is 33258233. The next prime is 33258259. The reversal of 33258240 is 4285233.

It is a super-2 number, since 2×33258240² = 2212221055795200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10077 + ... + 12963.

Almost surely, 2^33258240 is an apocalyptic number.

33258240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33258240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57554952).

33258240 is an abundant number, since it is smaller than the sum of its proper divisors (81851664).

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

33258240 is a wasteful number, since it uses less digits than its factorization.

33258240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2914 (or 2897 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 33258240 is about 5766.9957516891. The cubic root of 33258240 is about 321.5879404403.

The spelling of 33258240 in words is "thirty-three million, two hundred fifty-eight thousand, two hundred forty".