422402001420 has 192 divisors, whose sum is σ = 1374478995456. Its totient is φ = 94932069120.

The previous prime is 422402001409. The next prime is 422402001443. The reversal of 422402001420 is 24100204224.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7326747 + ... + 7384173.

It is an arithmetic number, because the mean of its divisors is an integer number (7158744768).

Almost surely, 2^422402001420 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 422402001420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (687239497728).

422402001420 is an abundant number, since it is smaller than the sum of its proper divisors (952076994036).

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

422402001420 is a wasteful number, since it uses less digits than its factorization.

422402001420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57740 (or 57738 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 422402001420 its reverse (24100204224), we get a palindrome (446502205644).

The spelling of 422402001420 in words is "four hundred twenty-two billion, four hundred two million, one thousand, four hundred twenty".