402340321423432 has 64 divisors (see below), whose sum is σ = 866331897949440. Its totient is φ = 171598550323200.

The previous prime is 402340321423409. The next prime is 402340321423517. The reversal of 402340321423432 is 234324123043204.

It is a super-2 number, since 2×402340321423432² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 402340321423391 and 402340321423400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7975369 + ... + 29466712.

It is an arithmetic number, because the mean of its divisors is an integer number (13536435905460).

Almost surely, 2^{402340321423432} is an apocalyptic number.

It is an amenable number.

402340321423432 is an abundant number, since it is smaller than the sum of its proper divisors (463991576526008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402340321423432 is a wasteful number, since it uses less digits than its factorization.

402340321423432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37443022 (or 37443018 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 37.

Adding to 402340321423432 its reverse (234324123043204), we get a palindrome (636664444466636).

The spelling of 402340321423432 in words is "four hundred two trillion, three hundred forty billion, three hundred twenty-one million, four hundred twenty-three thousand, four hundred thirty-two".