43744493 has 4 divisors (see below), whose sum is σ = 47109468. Its totient is φ = 40379520.

The previous prime is 43744487. The next prime is 43744507. The reversal of 43744493 is 39444734.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2617924 + 41126569 = 1618^2 + 6413^2 .

It is a cyclic number.

It is not a de Polignac number, because 43744493 - 2¹⁸ = 43482349 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 (43744423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1682468 + ... + 1682493.

It is an arithmetic number, because the mean of its divisors is an integer number (11777367).

Almost surely, 2^43744493 is an apocalyptic number.

It is an amenable number.

43744493 is a deficient number, since it is larger than the sum of its proper divisors (3364975).

43744493 is a wasteful number, since it uses less digits than its factorization.

43744493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3364974.

The product of its digits is 145152, while the sum is 38.

The square root of 43744493 is about 6613.9619744900. The cubic root of 43744493 is about 352.3501514213.

The spelling of 43744493 in words is "forty-three million, seven hundred forty-four thousand, four hundred ninety-three".