432123826 has 4 divisors (see below), whose sum is σ = 648185742. Its totient is φ = 216061912.

The previous prime is 432123823. The next prime is 432123827. The reversal of 432123826 is 628321234.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 406062801 + 26061025 = 20151^2 + 5105^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (432123823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108030955 + ... + 108030958.

Almost surely, 2^432123826 is an apocalyptic number.

432123826 is a deficient number, since it is larger than the sum of its proper divisors (216061916).

432123826 is a wasteful number, since it uses less digits than its factorization.

432123826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216061915.

The product of its digits is 13824, while the sum is 31.

The square root of 432123826 is about 20787.5882680026. The cubic root of 432123826 is about 756.0248503445.

The spelling of 432123826 in words is "four hundred thirty-two million, one hundred twenty-three thousand, eight hundred twenty-six".