423686324 has 12 divisors (see below), whose sum is σ = 745216164. Its totient is φ = 210767424.

The previous prime is 423686309. The next prime is 423686327.

423686324 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 416568100 + 7118224 = 20410^2 + 2668^2 .

It is a super-2 number, since 2×423686324² = 359020202289265952, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423686327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268049 + ... + 269624.

It is an arithmetic number, because the mean of its divisors is an integer number (62101347).

Almost surely, 2^423686324 is an apocalyptic number.

It is an amenable number.

423686324 is a deficient number, since it is larger than the sum of its proper divisors (321529840).

423686324 is a wasteful number, since it uses less digits than its factorization.

423686324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537874 (or 537872 counting only the distinct ones).

The product of its digits is 165888, while the sum is 38.

The square root of 423686324 is about 20583.6421461315. The cubic root of 423686324 is about 751.0718446542.

The spelling of 423686324 in words is "four hundred twenty-three million, six hundred eighty-six thousand, three hundred twenty-four".