133430436 has 48 divisors (see below), whose sum is σ = 355290880. Its totient is φ = 43273440.

The previous prime is 133430389. The next prime is 133430449. The reversal of 133430436 is 634034331.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 12700 + ... + 20691.

Almost surely, 2^133430436 is an apocalyptic number.

It is an amenable number.

133430436 is an abundant number, since it is smaller than the sum of its proper divisors (221860444).

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

133430436 is a wasteful number, since it uses less digits than its factorization.

133430436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33441 (or 33433 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

The square root of 133430436 is about 11551.2092873430. The cubic root of 133430436 is about 510.9969426507.

Adding to 133430436 its reverse (634034331), we get a palindrome (767464767).

The spelling of 133430436 in words is "one hundred thirty-three million, four hundred thirty thousand, four hundred thirty-six".