402240314020 has 24 divisors (see below), whose sum is σ = 846018379584. Its totient is φ = 160645893216.

The previous prime is 402240313957. The next prime is 402240314041. The reversal of 402240314020 is 20413042204.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 402240313982 and 402240314000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15626344 + ... + 15652063.

It is an arithmetic number, because the mean of its divisors is an integer number (35250765816).

Almost surely, 2^402240314020 is an apocalyptic number.

It is an amenable number.

402240314020 is an abundant number, since it is smaller than the sum of its proper divisors (443778065564).

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

402240314020 is a wasteful number, since it uses less digits than its factorization.

402240314020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31279059 (or 31279057 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 402240314020 its reverse (20413042204), we get a palindrome (422653356224).

The spelling of 402240314020 in words is "four hundred two billion, two hundred forty million, three hundred fourteen thousand, twenty".