33250840 has 64 divisors (see below), whose sum is σ = 86184000. Its totient is φ = 11309568.

The previous prime is 33250831. The next prime is 33250871. The reversal of 33250840 is 4805233.

It is a super-2 number, since 2×33250840² = 2211236721411200, 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 15 ways as a sum of consecutive naturals, for example, 41322 + ... + 42118.

It is an arithmetic number, because the mean of its divisors is an integer number (1346625).

Almost surely, 2^33250840 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 33250840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43092000).

33250840 is an abundant number, since it is smaller than the sum of its proper divisors (52933160).

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

33250840 is a wasteful number, since it uses less digits than its factorization.

33250840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964 (or 960 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 33250840 is about 5766.3541341128. The cubic root of 33250840 is about 321.5640874315.

The spelling of 33250840 in words is "thirty-three million, two hundred fifty thousand, eight hundred forty".