343240812 has 72 divisors (see below), whose sum is σ = 938298816. Its totient is φ = 105383424.

The previous prime is 343240811. The next prime is 343240813. The reversal of 343240812 is 218042343.

343240812 is a `hidden beast` number, since 343 + 240 + 81 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (343240811) and next prime (343240813).

It is not an unprimeable number, because it can be changed into a prime (343240811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22798 + ... + 34730.

It is an arithmetic number, because the mean of its divisors is an integer number (13031928).

Almost surely, 2^343240812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 343240812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (469149408).

343240812 is an abundant number, since it is smaller than the sum of its proper divisors (595058004).

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

343240812 is a wasteful number, since it uses less digits than its factorization.

343240812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12007 (or 12002 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 343240812 is about 18526.7593496542. The cubic root of 343240812 is about 700.1637793645.

It can be divided in two parts, 3432 and 40812, that added together give a palindrome (44244).

The spelling of 343240812 in words is "three hundred forty-three million, two hundred forty thousand, eight hundred twelve".