422400042420 has 288 divisors, whose sum is σ = 1304984862720. Its totient is φ = 101949269760.

The previous prime is 422400042409. The next prime is 422400042563. The reversal of 422400042420 is 24240004224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 53041359 + ... + 53049321.

It is an arithmetic number, because the mean of its divisors is an integer number (4531197440).

Almost surely, 2^422400042420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422400042420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (652492431360).

422400042420 is an abundant number, since it is smaller than the sum of its proper divisors (882584820300).

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

422400042420 is a wasteful number, since it uses less digits than its factorization.

422400042420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8123 (or 8102 counting only the distinct ones).

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

Adding to 422400042420 its reverse (24240004224), we get a palindrome (446640046644).

The spelling of 422400042420 in words is "four hundred twenty-two billion, four hundred million, forty-two thousand, four hundred twenty".