43468139 has 16 divisors (see below), whose sum is σ = 51256800. Its totient is φ = 36341760.

The previous prime is 43468123. The next prime is 43468147. The reversal of 43468139 is 93186434.

It is not a de Polignac number, because 43468139 - 2⁴ = 43468123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43468339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63869 + ... + 64545.

It is an arithmetic number, because the mean of its divisors is an integer number (3203550).

Almost surely, 2^43468139 is an apocalyptic number.

43468139 is a deficient number, since it is larger than the sum of its proper divisors (7788661).

43468139 is a wasteful number, since it uses less digits than its factorization.

43468139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150.

The product of its digits is 62208, while the sum is 38.

The square root of 43468139 is about 6593.0371605202. The cubic root of 43468139 is about 351.6065976579.

The spelling of 43468139 in words is "forty-three million, four hundred sixty-eight thousand, one hundred thirty-nine".