343706724 has 72 divisors (see below), whose sum is σ = 902112120. Its totient is φ = 110208000.

The previous prime is 343706711. The next prime is 343706747. The reversal of 343706724 is 427607343.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 119246400 + 224460324 = 10920^2 + 14982^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 418234 + ... + 419054.

It is an arithmetic number, because the mean of its divisors is an integer number (12529335).

Almost surely, 2^343706724 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 343706724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (451056060).

343706724 is an abundant number, since it is smaller than the sum of its proper divisors (558405396).

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

343706724 is a wasteful number, since it uses less digits than its factorization.

343706724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261 (or 1256 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 36.

The square root of 343706724 is about 18539.3291140753. The cubic root of 343706724 is about 700.4804348110.

The spelling of 343706724 in words is "three hundred forty-three million, seven hundred six thousand, seven hundred twenty-four".