402222431418 has 64 divisors (see below), whose sum is σ = 818782473600. Its totient is φ = 131705671680.

The previous prime is 402222431417. The next prime is 402222431461. The reversal of 402222431418 is 814134222204.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (402222431417) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182578305 + ... + 182580507.

It is an arithmetic number, because the mean of its divisors is an integer number (12793476150).

Almost surely, 2^402222431418 is an apocalyptic number.

402222431418 is an abundant number, since it is smaller than the sum of its proper divisors (416560042182).

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

402222431418 is a wasteful number, since it uses less digits than its factorization.

402222431418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4367.

The product of its (nonzero) digits is 24576, while the sum is 33.

The spelling of 402222431418 in words is "four hundred two billion, two hundred twenty-two million, four hundred thirty-one thousand, four hundred eighteen".