22401420342 has 32 divisors (see below), whose sum is σ = 51529396992. Its totient is φ = 6359637024.

The previous prime is 22401420313. The next prime is 22401420343. The reversal of 22401420342 is 24302410422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22401420343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1692028 + ... + 1705215.

It is an arithmetic number, because the mean of its divisors is an integer number (1610293656).

Almost surely, 2^22401420342 is an apocalyptic number.

22401420342 is an abundant number, since it is smaller than the sum of its proper divisors (29127976650).

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

22401420342 is a wasteful number, since it uses less digits than its factorization.

22401420342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3397412.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 22401420342 its reverse (24302410422), we get a palindrome (46703830764).

The spelling of 22401420342 in words is "twenty-two billion, four hundred one million, four hundred twenty thousand, three hundred forty-two".