133430340 has 24 divisors (see below), whose sum is σ = 373605120. Its totient is φ = 35581408.

The previous prime is 133430317. The next prime is 133430347. The reversal of 133430340 is 43034331.

It is not an unprimeable number, because it can be changed into a prime (133430347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1111860 + ... + 1111979.

It is an arithmetic number, because the mean of its divisors is an integer number (15566880).

Almost surely, 2^133430340 is an apocalyptic number.

133430340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133430340 is an abundant number, since it is smaller than the sum of its proper divisors (240174780).

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

133430340 is a wasteful number, since it uses less digits than its factorization.

133430340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223851 (or 2223849 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 133430340 is about 11551.2051319332. The cubic root of 133430340 is about 510.9968201006.

Adding to 133430340 its reverse (43034331), we get a palindrome (176464671).

The spelling of 133430340 in words is "one hundred thirty-three million, four hundred thirty thousand, three hundred forty".