402223440334 has 4 divisors (see below), whose sum is σ = 603335160504. Its totient is φ = 201111720166.

The previous prime is 402223440329. The next prime is 402223440347. The reversal of 402223440334 is 433044322204.

It is a happy number.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 402223440296 and 402223440305.

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, 100555860082 + ... + 100555860085.

It is an arithmetic number, because the mean of its divisors is an integer number (150833790126).

Almost surely, 2^402223440334 is an apocalyptic number.

402223440334 is a deficient number, since it is larger than the sum of its proper divisors (201111720170).

402223440334 is a wasteful number, since it uses less digits than its factorization.

402223440334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201111720169.

The product of its (nonzero) digits is 55296, while the sum is 31.

Adding to 402223440334 its reverse (433044322204), we get a palindrome (835267762538).

The spelling of 402223440334 in words is "four hundred two billion, two hundred twenty-three million, four hundred forty thousand, three hundred thirty-four".