573432381 has 12 divisors (see below), whose sum is σ = 831285052. Its totient is φ = 380906496.

The previous prime is 573432373. The next prime is 573432403. The reversal of 573432381 is 183234375.

573432381 is a `hidden beast` number, since 573 + 4 + 3 + 2 + 3 + 81 = 666.

573432381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 379080900 + 194351481 = 19470^2 + 13941^2 .

It is not a de Polignac number, because 573432381 - 2³ = 573432373 is a prime.

It is a super-2 number, since 2×573432381² = 657649391158658322, 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 (573432361) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112516 + ... + 117501.

Almost surely, 2^573432381 is an apocalyptic number.

It is an amenable number.

573432381 is a deficient number, since it is larger than the sum of its proper divisors (257852671).

573432381 is a wasteful number, since it uses less digits than its factorization.

573432381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230300 (or 230297 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 573432381 is about 23946.4481917465. The cubic root of 573432381 is about 830.7953768144.

The spelling of 573432381 in words is "five hundred seventy-three million, four hundred thirty-two thousand, three hundred eighty-one".