43429649 has 8 divisors (see below), whose sum is σ = 45780000. Its totient is φ = 41085792.

The previous prime is 43429643. The next prime is 43429651. The reversal of 43429649 is 94692434.

43429649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 43429649 - 2¹² = 43425553 is a prime.

It is a super-2 number, since 2×43429649² = 3772268824526402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43429643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18842 + ... + 21020.

It is an arithmetic number, because the mean of its divisors is an integer number (5722500).

Almost surely, 2^43429649 is an apocalyptic number.

It is an amenable number.

43429649 is a deficient number, since it is larger than the sum of its proper divisors (2350351).

43429649 is a wasteful number, since it uses less digits than its factorization.

43429649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3247.

The product of its digits is 186624, while the sum is 41.

The square root of 43429649 is about 6590.1175255074. The cubic root of 43429649 is about 351.5027872602.

The spelling of 43429649 in words is "forty-three million, four hundred twenty-nine thousand, six hundred forty-nine".