402214312 has 8 divisors (see below), whose sum is σ = 754151850. Its totient is φ = 201107152.

The previous prime is 402214301. The next prime is 402214313. The reversal of 402214312 is 213412204.

It can be written as a sum of positive squares in only one way, i.e., 339075396 + 63138916 = 18414^2 + 7946^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×402214312³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 402214312.

It is not an unprimeable number, because it can be changed into a prime (402214313) 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 as a sum of consecutive naturals, namely, 25138387 + ... + 25138402.

Almost surely, 2^402214312 is an apocalyptic number.

It is an amenable number.

402214312 is a deficient number, since it is larger than the sum of its proper divisors (351937538).

402214312 is a wasteful number, since it uses less digits than its factorization.

402214312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50276795 (or 50276791 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 402214312 is about 20055.2813991726. The cubic root of 402214312 is about 738.1633977940.

Adding to 402214312 its reverse (213412204), we get a palindrome (615626516).

The spelling of 402214312 in words is "four hundred two million, two hundred fourteen thousand, three hundred twelve".