402422220042 has 32 divisors (see below), whose sum is σ = 818019259200. Its totient is φ = 131960239488.

The previous prime is 402422220019. The next prime is 402422220073. The reversal of 402422220042 is 240022224204.

402422220042 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 402422219994 and 402422220021.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1807492 + ... + 2017887.

It is an arithmetic number, because the mean of its divisors is an integer number (25563101850).

Almost surely, 2^402422220042 is an apocalyptic number.

402422220042 is an abundant number, since it is smaller than the sum of its proper divisors (415597039158).

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

402422220042 is a wasteful number, since it uses less digits than its factorization.

402422220042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3825670.

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 402422220042 its reverse (240022224204), we get a palindrome (642444444246).

The spelling of 402422220042 in words is "four hundred two billion, four hundred twenty-two million, two hundred twenty thousand, forty-two".