343561644 has 36 divisors (see below), whose sum is σ = 869024520. Its totient is φ = 114444480.

The previous prime is 343561639. The next prime is 343561657. The reversal of 343561644 is 446165343.

343561644 is a `hidden beast` number, since 3 + 4 + 3 + 5 + 6 + 1 + 644 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×343561644³ (a number of 27 digits) contains 333 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 343561599 and 343561608.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86584 + ... + 90464.

It is an arithmetic number, because the mean of its divisors is an integer number (24139570).

Almost surely, 2^343561644 is an apocalyptic number.

It is an amenable number.

343561644 is an abundant number, since it is smaller than the sum of its proper divisors (525462876).

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

343561644 is a wasteful number, since it uses less digits than its factorization.

343561644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6350 (or 6345 counting only the distinct ones).

The product of its digits is 103680, while the sum is 36.

The square root of 343561644 is about 18535.4159381439. The cubic root of 343561644 is about 700.3818623977.

The spelling of 343561644 in words is "three hundred forty-three million, five hundred sixty-one thousand, six hundred forty-four".