43729345 has 8 divisors (see below), whose sum is σ = 57245760. Its totient is φ = 31803120.

The previous prime is 43729339. The next prime is 43729363. The reversal of 43729345 is 54392734.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43729345 - 2³ = 43729337 is a prime.

It is a super-2 number, since 2×43729345² = 3824511228258050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397485 + ... + 397594.

It is an arithmetic number, because the mean of its divisors is an integer number (7155720).

Almost surely, 2^43729345 is an apocalyptic number.

It is an amenable number.

43729345 is a deficient number, since it is larger than the sum of its proper divisors (13516415).

43729345 is a wasteful number, since it uses less digits than its factorization.

43729345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795095.

The product of its digits is 90720, while the sum is 37.

The square root of 43729345 is about 6612.8167220935. The cubic root of 43729345 is about 352.3094757009.

The spelling of 43729345 in words is "forty-three million, seven hundred twenty-nine thousand, three hundred forty-five".