402222432431 has 8 divisors (see below), whose sum is σ = 405944177760. Its totient is φ = 398501262432.

The previous prime is 402222432427. The next prime is 402222432439. The reversal of 402222432431 is 134234222204.

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 402222432431 - 2² = 402222432427 is a prime.

It is a super-2 number, since 2×402222432431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402222432394 and 402222432403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402222432439) 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, 1330421 + ... + 1604513.

It is an arithmetic number, because the mean of its divisors is an integer number (50743022220).

Almost surely, 2^402222432431 is an apocalyptic number.

402222432431 is a deficient number, since it is larger than the sum of its proper divisors (3721745329).

402222432431 is a wasteful number, since it uses less digits than its factorization.

402222432431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287665.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 402222432431 its reverse (134234222204), we get a palindrome (536456654635).

The spelling of 402222432431 in words is "four hundred two billion, two hundred twenty-two million, four hundred thirty-two thousand, four hundred thirty-one".