402144201422 has 4 divisors (see below), whose sum is σ = 603216302136. Its totient is φ = 201072100710.

The previous prime is 402144201419. The next prime is 402144201439. The reversal of 402144201422 is 224102441204.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 402144201391 and 402144201400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100536050354 + ... + 100536050357.

It is an arithmetic number, because the mean of its divisors is an integer number (150804075534).

Almost surely, 2^402144201422 is an apocalyptic number.

402144201422 is a deficient number, since it is larger than the sum of its proper divisors (201072100714).

402144201422 is a wasteful number, since it uses less digits than its factorization.

402144201422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201072100713.

The product of its (nonzero) digits is 4096, while the sum is 26.

Adding to 402144201422 its reverse (224102441204), we get a palindrome (626246642626).

The spelling of 402144201422 in words is "four hundred two billion, one hundred forty-four million, two hundred one thousand, four hundred twenty-two".