343650684 has 72 divisors (see below), whose sum is σ = 889669872. Its totient is φ = 103134720.

The previous prime is 343650683. The next prime is 343650689. The reversal of 343650684 is 486056343.

It is a super-2 number, since 2×343650684² = 236191585227335712, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343650683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81082 + ... + 85214.

It is an arithmetic number, because the mean of its divisors is an integer number (12356526).

Almost surely, 2^343650684 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 343650684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (444834936).

343650684 is an abundant number, since it is smaller than the sum of its proper divisors (546019188).

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

343650684 is a wasteful number, since it uses less digits than its factorization.

343650684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4207 (or 4192 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 39.

The square root of 343650684 is about 18537.8176709126. The cubic root of 343650684 is about 700.4423625685.

The spelling of 343650684 in words is "three hundred forty-three million, six hundred fifty thousand, six hundred eighty-four".