133802380 has 12 divisors (see below), whose sum is σ = 280985040. Its totient is φ = 53520944.

The previous prime is 133802377. The next prime is 133802381. The reversal of 133802380 is 83208331.

It is not an unprimeable number, because it can be changed into a prime (133802381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3345040 + ... + 3345079.

It is an arithmetic number, because the mean of its divisors is an integer number (23415420).

Almost surely, 2^133802380 is an apocalyptic number.

133802380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133802380 is an abundant number, since it is smaller than the sum of its proper divisors (147182660).

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

133802380 is a wasteful number, since it uses less digits than its factorization.

133802380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6690128 (or 6690126 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 133802380 is about 11567.2978694248. The cubic root of 133802380 is about 511.4713119746.

The spelling of 133802380 in words is "one hundred thirty-three million, eight hundred two thousand, three hundred eighty".