402240234323 has 8 divisors (see below), whose sum is σ = 407916434016. Its totient is φ = 396564336000.

The previous prime is 402240234317. The next prime is 402240234433. The reversal of 402240234323 is 323432042204.

It is a happy number.

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 402240234323 - 2¹⁰ = 402240233299 is a prime.

It is a super-3 number, since 3×402240234323³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402240234223) 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, 5137115 + ... + 5214827.

It is an arithmetic number, because the mean of its divisors is an integer number (50989554252).

Almost surely, 2^402240234323 is an apocalyptic number.

402240234323 is a deficient number, since it is larger than the sum of its proper divisors (5676199693).

402240234323 is an equidigital number, since it uses as much as digits as its factorization.

402240234323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150685.

The product of its (nonzero) digits is 27648, while the sum is 29.

Adding to 402240234323 its reverse (323432042204), we get a palindrome (725672276527).

The spelling of 402240234323 in words is "four hundred two billion, two hundred forty million, two hundred thirty-four thousand, three hundred twenty-three".