43678349 has 32 divisors (see below), whose sum is σ = 54190080. Its totient is φ = 34660800.

The previous prime is 43678343. The next prime is 43678361. The reversal of 43678349 is 94387634.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 43678349 - 2⁴ = 43678333 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43678343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 261464 + ... + 261630.

It is an arithmetic number, because the mean of its divisors is an integer number (1693440).

Almost surely, 2^43678349 is an apocalyptic number.

It is an amenable number.

43678349 is a deficient number, since it is larger than the sum of its proper divisors (10511731).

43678349 is a wasteful number, since it uses less digits than its factorization.

43678349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281.

The product of its digits is 435456, while the sum is 44.

The square root of 43678349 is about 6608.9597517310. The cubic root of 43678349 is about 352.1724711142.

The spelling of 43678349 in words is "forty-three million, six hundred seventy-eight thousand, three hundred forty-nine".