402221334 has 8 divisors (see below), whose sum is σ = 804442680. Its totient is φ = 134073776.

The previous prime is 402221333. The next prime is 402221359. The reversal of 402221334 is 433122204.

It is a sphenic number, since it is the product of 3 distinct primes.

402221334 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 402221334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402221333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33518439 + ... + 33518450.

It is an arithmetic number, because the mean of its divisors is an integer number (100555335).

Almost surely, 2^402221334 is an apocalyptic number.

402221334 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

402221334 is a wasteful number, since it uses less digits than its factorization.

402221334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67036894.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 402221334 is about 20055.4564645136. The cubic root of 402221334 is about 738.1676934751.

Adding to 402221334 its reverse (433122204), we get a palindrome (835343538).

The spelling of 402221334 in words is "four hundred two million, two hundred twenty-one thousand, three hundred thirty-four".