133793424 has 40 divisors (see below), whose sum is σ = 384037920. Its totient is φ = 44597664.

The previous prime is 133793423. The next prime is 133793437. The reversal of 133793424 is 424397331.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (133793423) 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, 154422 + ... + 155285.

It is an arithmetic number, because the mean of its divisors is an integer number (9600948).

Almost surely, 2^133793424 is an apocalyptic number.

It is an amenable number.

133793424 is an abundant number, since it is smaller than the sum of its proper divisors (250244496).

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

133793424 is a wasteful number, since it uses less digits than its factorization.

133793424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309724 (or 309712 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 133793424 is about 11566.9107370983. The cubic root of 133793424 is about 511.4599000220.

The spelling of 133793424 in words is "one hundred thirty-three million, seven hundred ninety-three thousand, four hundred twenty-four".