343942664 has 16 divisors (see below), whose sum is σ = 694499820. Its totient is φ = 158742720.

The previous prime is 343942661. The next prime is 343942699. The reversal of 343942664 is 466249343.

It can be written as a sum of positive squares in 2 ways, for example, as 343805764 + 136900 = 18542^2 + 370^2 .

It is a super-2 number, since 2×343942664² = 236593112238833792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (343942661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1653467 + ... + 1653674.

Almost surely, 2^343942664 is an apocalyptic number.

It is an amenable number.

343942664 is an abundant number, since it is smaller than the sum of its proper divisors (350557156).

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

343942664 is a wasteful number, since it uses less digits than its factorization.

343942664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3307160 (or 3307156 counting only the distinct ones).

The product of its digits is 373248, while the sum is 41.

The square root of 343942664 is about 18545.6912516088. The cubic root of 343942664 is about 700.6406814587.

The spelling of 343942664 in words is "three hundred forty-three million, nine hundred forty-two thousand, six hundred sixty-four".