402144224443 has 16 divisors (see below), whose sum is σ = 455921804800. Its totient is φ = 351634258080.

The previous prime is 402144224423. The next prime is 402144224453. The reversal of 402144224443 is 344422441204.

It is a cyclic number.

It is not a de Polignac number, because 402144224443 - 2¹⁷ = 402144093371 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402144224399 and 402144224408.

It is not an unprimeable number, because it can be changed into a prime (402144224423) 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, 2306608 + ... + 2474818.

It is an arithmetic number, because the mean of its divisors is an integer number (28495112800).

Almost surely, 2^402144224443 is an apocalyptic number.

402144224443 is a deficient number, since it is larger than the sum of its proper divisors (53777580357).

402144224443 is a wasteful number, since it uses less digits than its factorization.

402144224443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177922.

The product of its (nonzero) digits is 98304, while the sum is 34.

Adding to 402144224443 its reverse (344422441204), we get a palindrome (746566665647).

The spelling of 402144224443 in words is "four hundred two billion, one hundred forty-four million, two hundred twenty-four thousand, four hundred forty-three".