133720480 has 48 divisors (see below), whose sum is σ = 332549280. Its totient is φ = 50671872.

The previous prime is 133720469. The next prime is 133720481. The reversal of 133720480 is 84027331.

It is not an unprimeable number, because it can be changed into a prime (133720481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18954 + ... + 25033.

It is an arithmetic number, because the mean of its divisors is an integer number (6928110).

Almost surely, 2^133720480 is an apocalyptic number.

133720480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133720480 is an abundant number, since it is smaller than the sum of its proper divisors (198828800).

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

133720480 is a wasteful number, since it uses less digits than its factorization.

133720480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44021 (or 44013 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 133720480 is about 11563.7571748978. The cubic root of 133720480 is about 511.3669340352.

The spelling of 133720480 in words is "one hundred thirty-three million, seven hundred twenty thousand, four hundred eighty".