133493304 has 64 divisors (see below), whose sum is σ = 382659840. Its totient is φ = 38016000.

The previous prime is 133493303. The next prime is 133493309. The reversal of 133493304 is 403394331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133493303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58179 + ... + 60429.

It is an arithmetic number, because the mean of its divisors is an integer number (5979060).

Almost surely, 2^133493304 is an apocalyptic number.

133493304 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133493304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191329920).

133493304 is an abundant number, since it is smaller than the sum of its proper divisors (249166536).

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

133493304 is a wasteful number, since it uses less digits than its factorization.

133493304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2620 (or 2616 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 30.

The square root of 133493304 is about 11553.9302403987. The cubic root of 133493304 is about 511.0771849917.

It can be divided in two parts, 13349 and 3304, that added together give a triangular number (16653 = T₁₈₂).

The spelling of 133493304 in words is "one hundred thirty-three million, four hundred ninety-three thousand, three hundred four".