133430844 has 48 divisors (see below), whose sum is σ = 328608000. Its totient is φ = 42022656.

The previous prime is 133430837. The next prime is 133430861. The reversal of 133430844 is 448034331.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136084 + ... + 137060.

It is an arithmetic number, because the mean of its divisors is an integer number (6846000).

Almost surely, 2^133430844 is an apocalyptic number.

It is an amenable number.

133430844 is an abundant number, since it is smaller than the sum of its proper divisors (195177156).

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

133430844 is a wasteful number, since it uses less digits than its factorization.

133430844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602 (or 1600 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 133430844 is about 11551.2269478181. The cubic root of 133430844 is about 510.9974634877.

The spelling of 133430844 in words is "one hundred thirty-three million, four hundred thirty thousand, eight hundred forty-four".