402250520230 has 128 divisors (see below), whose sum is σ = 798463733760. Its totient is φ = 145011686400.

The previous prime is 402250520213. The next prime is 402250520249. The reversal of 402250520230 is 32025052204.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 402250520195 and 402250520204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 389399794 + ... + 389400826.

It is an arithmetic number, because the mean of its divisors is an integer number (6237997920).

Almost surely, 2^402250520230 is an apocalyptic number.

402250520230 is a deficient number, since it is larger than the sum of its proper divisors (396213213530).

402250520230 is a wasteful number, since it uses less digits than its factorization.

402250520230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1526.

The product of its (nonzero) digits is 4800, while the sum is 25.

Adding to 402250520230 its reverse (32025052204), we get a palindrome (434275572434).

The spelling of 402250520230 in words is "four hundred two billion, two hundred fifty million, five hundred twenty thousand, two hundred thirty".