133675440 has 40 divisors (see below), whose sum is σ = 414394608. Its totient is φ = 35646720.

The previous prime is 133675429. The next prime is 133675489. The reversal of 133675440 is 44576331.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278251 + ... + 278730.

Almost surely, 2^133675440 is an apocalyptic number.

133675440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133675440 is an abundant number, since it is smaller than the sum of its proper divisors (280719168).

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

133675440 is a wasteful number, since it uses less digits than its factorization.

133675440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556997 (or 556991 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 133675440 is about 11561.8095469524. The cubic root of 133675440 is about 511.3095143762.

The spelling of 133675440 in words is "one hundred thirty-three million, six hundred seventy-five thousand, four hundred forty".