402231214 has 32 divisors (see below), whose sum is σ = 755225856. Its totient is φ = 156088320.

The previous prime is 402231209. The next prime is 402231227. The reversal of 402231214 is 412132204.

It is a junction number, because it is equal to n+sod(n) for n = 402231191 and 402231200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34497 + ... + 44659.

It is an arithmetic number, because the mean of its divisors is an integer number (23600808).

Almost surely, 2^402231214 is an apocalyptic number.

402231214 is a deficient number, since it is larger than the sum of its proper divisors (352994642).

402231214 is a wasteful number, since it uses less digits than its factorization.

402231214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10440.

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

The square root of 402231214 is about 20055.7027800075. The cubic root of 402231214 is about 738.1737374418.

Adding to 402231214 its reverse (412132204), we get a palindrome (814363418).

The spelling of 402231214 in words is "four hundred two million, two hundred thirty-one thousand, two hundred fourteen".