402224323221552 has 40 divisors (see below), whose sum is σ = 1119008694092464. Its totient is φ = 123761330221824.

The previous prime is 402224323221529. The next prime is 402224323221571. The reversal of 402224323221552 is 255122323422204.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 402224323221552.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322295130163 + ... + 322295131410.

Almost surely, 2^{402224323221552} is an apocalyptic number.

It is an amenable number.

402224323221552 is an abundant number, since it is smaller than the sum of its proper divisors (716784370870912).

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

402224323221552 is a wasteful number, since it uses less digits than its factorization.

402224323221552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644590261597 (or 644590261591 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 39.

Adding to 402224323221552 its reverse (255122323422204), we get a palindrome (657346646643756).

The spelling of 402224323221552 in words is "four hundred two trillion, two hundred twenty-four billion, three hundred twenty-three million, two hundred twenty-one thousand, five hundred fifty-two".