402424444120 has 32 divisors (see below), whose sum is σ = 922539060720. Its totient is φ = 157932611200.

The previous prime is 402424444069. The next prime is 402424444141. The reversal of 402424444120 is 21444424204.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94909306 + ... + 94913545.

Almost surely, 2^402424444120 is an apocalyptic number.

402424444120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402424444120 is an abundant number, since it is smaller than the sum of its proper divisors (520114616600).

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

402424444120 is a wasteful number, since it uses less digits than its factorization.

402424444120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189822915 (or 189822911 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 31.

Adding to 402424444120 its reverse (21444424204), we get a palindrome (423868868324).

The spelling of 402424444120 in words is "four hundred two billion, four hundred twenty-four million, four hundred forty-four thousand, one hundred twenty".