402040330422 has 16 divisors (see below), whose sum is σ = 804091556352. Its totient is φ = 134011627560.

The previous prime is 402040330421. The next prime is 402040330463. The reversal of 402040330422 is 224033040204.

It is a junction number, because it is equal to n+sod(n) for n = 402040330392 and 402040330401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402040330421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72723 + ... + 899649.

It is an arithmetic number, because the mean of its divisors is an integer number (50255722272).

Almost surely, 2^402040330422 is an apocalyptic number.

402040330422 is an abundant number, since it is smaller than the sum of its proper divisors (402051225930).

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

402040330422 is a wasteful number, since it uses less digits than its factorization.

402040330422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907963.

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 402040330422 its reverse (224033040204), we get a palindrome (626073370626).

The spelling of 402040330422 in words is "four hundred two billion, forty million, three hundred thirty thousand, four hundred twenty-two".