43042671 has 20 divisors (see below), whose sum is σ = 73484752. Its totient is φ = 24595488.

The previous prime is 43042631. The next prime is 43042679. The reversal of 43042671 is 17624034.

It is not a de Polignac number, because 43042671 - 2⁶ = 43042607 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43042679) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 37390 + ... + 38523.

Almost surely, 2^43042671 is an apocalyptic number.

43042671 is a deficient number, since it is larger than the sum of its proper divisors (30442081).

43042671 is an equidigital number, since it uses as much as digits as its factorization.

43042671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75932 (or 75923 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 43042671 is about 6560.6913507648. The cubic root of 43042671 is about 350.4556541596.

The spelling of 43042671 in words is "forty-three million, forty-two thousand, six hundred seventy-one".