133650240 has 112 divisors (see below), whose sum is σ = 442862208. Its totient is φ = 34084864.

The previous prime is 133650233. The next prime is 133650271. The reversal of 133650240 is 42056331.

It is a happy number.

133650240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 133650240.

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, 19054 + ... + 25106.

Almost surely, 2^133650240 is an apocalyptic number.

133650240 is a gapful number since it is divisible by the number (10) 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 133650240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221431104).

133650240 is an abundant number, since it is smaller than the sum of its proper divisors (309211968).

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

133650240 is a wasteful number, since it uses less digits than its factorization.

133650240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6096 (or 6086 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 133650240 is about 11560.7197007799. The cubic root of 133650240 is about 511.2773822968.

The spelling of 133650240 in words is "one hundred thirty-three million, six hundred fifty thousand, two hundred forty".