343906656 has 24 divisors (see below), whose sum is σ = 902755224. Its totient is φ = 114635520.

The previous prime is 343906609. The next prime is 343906657. The reversal of 343906656 is 656609343.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×343906656² = 236543576082204672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343906657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1791085 + ... + 1791276.

It is an arithmetic number, because the mean of its divisors is an integer number (37614801).

Almost surely, 2^343906656 is an apocalyptic number.

It is an amenable number.

343906656 is an abundant number, since it is smaller than the sum of its proper divisors (558848568).

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

343906656 is a wasteful number, since it uses less digits than its factorization.

343906656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3582374 (or 3582366 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 42.

The square root of 343906656 is about 18544.7204346682. The cubic root of 343906656 is about 700.6162301448.

The spelling of 343906656 in words is "three hundred forty-three million, nine hundred six thousand, six hundred fifty-six".