423169538 has 8 divisors (see below), whose sum is σ = 692459280. Its totient is φ = 192349780.

The previous prime is 423169531. The next prime is 423169547. The reversal of 423169538 is 835961324.

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

It is a super-2 number, since 2×423169538² = 358144915782266888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 423169495 and 423169504.

It is not an unprimeable number, because it can be changed into a prime (423169531) 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 3 ways as a sum of consecutive naturals, for example, 9617468 + ... + 9617511.

It is an arithmetic number, because the mean of its divisors is an integer number (86557410).

Almost surely, 2^423169538 is an apocalyptic number.

423169538 is a deficient number, since it is larger than the sum of its proper divisors (269289742).

423169538 is a wasteful number, since it uses less digits than its factorization.

423169538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19234992.

The product of its digits is 155520, while the sum is 41.

The square root of 423169538 is about 20571.0849981230. The cubic root of 423169538 is about 750.7663503059.

It can be divided in two parts, 423 and 169538, that added together give a palindrome (169961).

The spelling of 423169538 in words is "four hundred twenty-three million, one hundred sixty-nine thousand, five hundred thirty-eight".