133804644 has 24 divisors (see below), whose sum is σ = 312416160. Its totient is φ = 44572224.

The previous prime is 133804633. The next prime is 133804651. The reversal of 133804644 is 446408331.

It is a happy number.

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, 23247 + ... + 28425.

It is an arithmetic number, because the mean of its divisors is an integer number (13017340).

Almost surely, 2^133804644 is an apocalyptic number.

It is an amenable number.

133804644 is an abundant number, since it is smaller than the sum of its proper divisors (178611516).

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

133804644 is a wasteful number, since it uses less digits than its factorization.

133804644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7339 (or 7337 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 133804644 is about 11567.3957311056. The cubic root of 133804644 is about 511.4741967378.

The spelling of 133804644 in words is "one hundred thirty-three million, eight hundred four thousand, six hundred forty-four".