172434443 has 8 divisors (see below), whose sum is σ = 181949520. Its totient is φ = 162963360.

The previous prime is 172434433. The next prime is 172434469. The reversal of 172434443 is 344434271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 172434443 - 2⁸ = 172434187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172434413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2780 + ... + 18777.

It is an arithmetic number, because the mean of its divisors is an integer number (22743690).

Almost surely, 2^172434443 is an apocalyptic number.

172434443 is a deficient number, since it is larger than the sum of its proper divisors (9515077).

172434443 is a wasteful number, since it uses less digits than its factorization.

172434443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21997.

The product of its digits is 32256, while the sum is 32.

The square root of 172434443 is about 13131.4295870632. The cubic root of 172434443 is about 556.5976129976.

The spelling of 172434443 in words is "one hundred seventy-two million, four hundred thirty-four thousand, four hundred forty-three".