401422223142 has 16 divisors (see below), whose sum is σ = 892049384880. Its totient is φ = 133807407696.

The previous prime is 401422223123. The next prime is 401422223149. The reversal of 401422223142 is 241322224104.

It is a happy number.

401422223142 is a `hidden beast` number, since 4 + 0 + 1 + 422 + 2 + 231 + 4 + 2 = 666.

It is a super-2 number, since 2×401422223142² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401422223149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3716872383 + ... + 3716872490.

It is an arithmetic number, because the mean of its divisors is an integer number (55753086555).

Almost surely, 2^401422223142 is an apocalyptic number.

401422223142 is an abundant number, since it is smaller than the sum of its proper divisors (490627161738).

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

401422223142 is a wasteful number, since it uses less digits than its factorization.

401422223142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7433744884 (or 7433744878 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 401422223142 its reverse (241322224104), we get a palindrome (642744447246).

The spelling of 401422223142 in words is "four hundred one billion, four hundred twenty-two million, two hundred twenty-three thousand, one hundred forty-two".