402230221432 has 32 divisors (see below), whose sum is σ = 812373821280. Its totient is φ = 185603990400.

The previous prime is 402230221429. The next prime is 402230221439. The reversal of 402230221432 is 234122032204.

It is a junction number, because it is equal to n+sod(n) for n = 402230221397 and 402230221406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402230221439) 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, 54682 + ... + 898582.

It is an arithmetic number, because the mean of its divisors is an integer number (25386681915).

Almost surely, 2^402230221432 is an apocalyptic number.

It is an amenable number.

402230221432 is an abundant number, since it is smaller than the sum of its proper divisors (410143599848).

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

402230221432 is a wasteful number, since it uses less digits than its factorization.

402230221432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848503 (or 848499 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 402230221432 its reverse (234122032204), we get a palindrome (636352253636).

The spelling of 402230221432 in words is "four hundred two billion, two hundred thirty million, two hundred twenty-one thousand, four hundred thirty-two".