402441023422 has 4 divisors (see below), whose sum is σ = 603661535136. Its totient is φ = 201220511710.

The previous prime is 402441023419. The next prime is 402441023431. The reversal of 402441023422 is 224320144204.

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

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, 100610255854 + ... + 100610255857.

It is an arithmetic number, because the mean of its divisors is an integer number (150915383784).

Almost surely, 2^402441023422 is an apocalyptic number.

402441023422 is a deficient number, since it is larger than the sum of its proper divisors (201220511714).

402441023422 is a wasteful number, since it uses less digits than its factorization.

402441023422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201220511713.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 402441023422 its reverse (224320144204), we get a palindrome (626761167626).

The spelling of 402441023422 in words is "four hundred two billion, four hundred forty-one million, twenty-three thousand, four hundred twenty-two".