43080749 has 4 divisors (see below), whose sum is σ = 43145436. Its totient is φ = 43016064.

The previous prime is 43080743. The next prime is 43080757. The reversal of 43080749 is 94708034.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94708034 = 2 ⋅47354017.

It can be written as a sum of positive squares in 2 ways, for example, as 33582025 + 9498724 = 5795^2 + 3082^2 .

It is a cyclic number.

It is not a de Polignac number, because 43080749 - 2⁸ = 43080493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43080743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31334 + ... + 32679.

It is an arithmetic number, because the mean of its divisors is an integer number (10786359).

Almost surely, 2^43080749 is an apocalyptic number.

It is an amenable number.

43080749 is a deficient number, since it is larger than the sum of its proper divisors (64687).

43080749 is an equidigital number, since it uses as much as digits as its factorization.

43080749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64686.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 43080749 is about 6563.5926899831. The cubic root of 43080749 is about 350.5589680485.

The spelling of 43080749 in words is "forty-three million, eighty thousand, seven hundred forty-nine".