402324231 has 8 divisors (see below), whose sum is σ = 553736704. Its totient is φ = 259563960.

The previous prime is 402324203. The next prime is 402324271. The reversal of 402324231 is 132423204.

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

It is a de Polignac number, because none of the positive numbers 2^k-402324231 is a prime.

It is a super-2 number, since 2×402324231² = 323729573699482722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402324198 and 402324207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402324271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2162941 + ... + 2163126.

It is an arithmetic number, because the mean of its divisors is an integer number (69217088).

Almost surely, 2^402324231 is an apocalyptic number.

402324231 is a deficient number, since it is larger than the sum of its proper divisors (151412473).

402324231 is a wasteful number, since it uses less digits than its factorization.

402324231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4326101.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 402324231 is about 20058.0216123126. The cubic root of 402324231 is about 738.2306345796.

Adding to 402324231 its reverse (132423204), we get a palindrome (534747435).

The spelling of 402324231 in words is "four hundred two million, three hundred twenty-four thousand, two hundred thirty-one".