343402312 has 32 divisors (see below), whose sum is σ = 743735520. Its totient is φ = 146909440.

The previous prime is 343402277. The next prime is 343402327. The reversal of 343402312 is 213204343.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 113278 + ... + 116269.

It is an arithmetic number, because the mean of its divisors is an integer number (23241735).

Almost surely, 2^343402312 is an apocalyptic number.

It is an amenable number.

343402312 is an abundant number, since it is smaller than the sum of its proper divisors (400333208).

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

343402312 is a wasteful number, since it uses less digits than its factorization.

343402312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229581 (or 229577 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 343402312 is about 18531.1173975020. The cubic root of 343402312 is about 700.2735747000.

Adding to 343402312 its reverse (213204343), we get a palindrome (556606655).

The spelling of 343402312 in words is "three hundred forty-three million, four hundred two thousand, three hundred twelve".