133240380 has 192 divisors, whose sum is σ = 479582208. Its totient is φ = 26864640.

The previous prime is 133240379. The next prime is 133240397. The reversal of 133240380 is 83042331.

It is a self number, because there is not a number n which added to its sum of digits gives 133240380.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 125050 + ... + 126110.

It is an arithmetic number, because the mean of its divisors is an integer number (2497824).

Almost surely, 2^133240380 is an apocalyptic number.

133240380 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 133240380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239791104).

133240380 is an abundant number, since it is smaller than the sum of its proper divisors (346341828).

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

133240380 is a wasteful number, since it uses less digits than its factorization.

133240380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116 (or 1114 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 133240380 is about 11542.9796846395. The cubic root of 133240380 is about 510.7542089700.

The spelling of 133240380 in words is "one hundred thirty-three million, two hundred forty thousand, three hundred eighty".