133304004 has 72 divisors (see below), whose sum is σ = 362220768. Its totient is φ = 41184000.

The previous prime is 133303979. The next prime is 133304009. The reversal of 133304004 is 400403331.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (133304009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39379 + ... + 42629.

It is an arithmetic number, because the mean of its divisors is an integer number (5030844).

Almost surely, 2^133304004 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133304004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181110384).

133304004 is an abundant number, since it is smaller than the sum of its proper divisors (228916764).

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

133304004 is a wasteful number, since it uses less digits than its factorization.

133304004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3345 (or 3340 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 133304004 is about 11545.7353165574. The cubic root of 133304004 is about 510.8354932741.

Adding to 133304004 its reverse (400403331), we get a palindrome (533707335).

The spelling of 133304004 in words is "one hundred thirty-three million, three hundred four thousand, four".