402312520424 has 16 divisors (see below), whose sum is σ = 755340429120. Its totient is φ = 200888406000.

The previous prime is 402312520391. The next prime is 402312520447. The reversal of 402312520424 is 424025213204.

It is a super-2 number, since 2×402312520424² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33475394 + ... + 33487409.

It is an arithmetic number, because the mean of its divisors is an integer number (47208776820).

Almost surely, 2^402312520424 is an apocalyptic number.

It is an amenable number.

402312520424 is a deficient number, since it is larger than the sum of its proper divisors (353027908696).

402312520424 is a wasteful number, since it uses less digits than its factorization.

402312520424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66963560 (or 66963556 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 402312520424 its reverse (424025213204), we get a palindrome (826337733628).

The spelling of 402312520424 in words is "four hundred two billion, three hundred twelve million, five hundred twenty thousand, four hundred twenty-four".