340128312 has 32 divisors (see below), whose sum is σ = 852266880. Its totient is φ = 113116640.

The previous prime is 340128293. The next prime is 340128317. The reversal of 340128312 is 213821043.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340128317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5364 + ... + 26627.

It is an arithmetic number, because the mean of its divisors is an integer number (26633340).

Almost surely, 2^340128312 is an apocalyptic number.

It is an amenable number.

340128312 is an abundant number, since it is smaller than the sum of its proper divisors (512138568).

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

340128312 is a wasteful number, since it uses less digits than its factorization.

340128312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32443 (or 32439 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 340128312 is about 18442.5679339944. The cubic root of 340128312 is about 698.0409934244.

Adding to 340128312 its reverse (213821043), we get a palindrome (553949355).

It can be divided in two parts, 34012 and 8312, that added together give a palindrome (42324).

The spelling of 340128312 in words is "three hundred forty million, one hundred twenty-eight thousand, three hundred twelve".