433333381 has 16 divisors (see below), whose sum is σ = 482306944. Its totient is φ = 386731584.

The previous prime is 433333343. The next prime is 433333393. The reversal of 433333381 is 183333334.

It is a cyclic number.

It is not a de Polignac number, because 433333381 - 2²⁷ = 299115653 is a prime.

It is a super-2 number, since 2×433333381² = 375555638177782322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (433333321) 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, 75640 + ... + 81166.

It is an arithmetic number, because the mean of its divisors is an integer number (30144184).

Almost surely, 2^433333381 is an apocalyptic number.

It is an amenable number.

433333381 is a deficient number, since it is larger than the sum of its proper divisors (48973563).

433333381 is a wasteful number, since it uses less digits than its factorization.

433333381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5740.

The product of its digits is 23328, while the sum is 31.

The square root of 433333381 is about 20816.6611395776. The cubic root of 433333381 is about 756.7295879632.

The spelling of 433333381 in words is "four hundred thirty-three million, three hundred thirty-three thousand, three hundred eighty-one".