402444240024 has 48 divisors (see below), whose sum is σ = 1034037786600. Its totient is φ = 130522445568.

The previous prime is 402444239983. The next prime is 402444240041. The reversal of 402444240024 is 420042444204.

402444240024 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×402444240024² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 402444239973 and 402444240000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6091509 + ... + 6157220.

Almost surely, 2^402444240024 is an apocalyptic number.

It is an amenable number.

402444240024 is an abundant number, since it is smaller than the sum of its proper divisors (631593546576).

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

402444240024 is a wasteful number, since it uses less digits than its factorization.

402444240024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12248812 (or 12248771 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 402444240024 its reverse (420042444204), we get a palindrome (822486684228).

The spelling of 402444240024 in words is "four hundred two billion, four hundred forty-four million, two hundred forty thousand, twenty-four".