312302214 has 24 divisors (see below), whose sum is σ = 773320080. Its totient is φ = 89229168.

The previous prime is 312302203. The next prime is 312302219. The reversal of 312302214 is 412203213.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312302219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1239169 + ... + 1239420.

It is an arithmetic number, because the mean of its divisors is an integer number (32221670).

Almost surely, 2^312302214 is an apocalyptic number.

312302214 is an abundant number, since it is smaller than the sum of its proper divisors (461017866).

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

312302214 is a wasteful number, since it uses less digits than its factorization.

312302214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2478604 (or 2478601 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 312302214 is about 17672.0744113418. The cubic root of 312302214 is about 678.4612075867.

Adding to 312302214 its reverse (412203213), we get a palindrome (724505427).

Subtracting 312302214 from its reverse (412203213), we obtain a palindrome (99900999).

The spelling of 312302214 in words is "three hundred twelve million, three hundred two thousand, two hundred fourteen".