133040340 has 48 divisors (see below), whose sum is σ = 413904960. Its totient is φ = 35477280.

The previous prime is 133040321. The next prime is 133040357. The reversal of 133040340 is 43040331.

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

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, 122646 + ... + 123725.

It is an arithmetic number, because the mean of its divisors is an integer number (8623020).

Almost surely, 2^133040340 is an apocalyptic number.

133040340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133040340 is an abundant number, since it is smaller than the sum of its proper divisors (280864620).

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

133040340 is a wasteful number, since it uses less digits than its factorization.

133040340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246389 (or 246381 counting only the distinct ones).

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

The square root of 133040340 is about 11534.3114228809. The cubic root of 133040340 is about 510.4984745694.

Adding to 133040340 its reverse (43040331), we get a palindrome (176080671).

Subtracting from 133040340 its reverse (43040331), we obtain a palindrome (90000009).

The spelling of 133040340 in words is "one hundred thirty-three million, forty thousand, three hundred forty".