43440745 has 8 divisors (see below), whose sum is σ = 54872640. Its totient is φ = 32923440.

The previous prime is 43440739. The next prime is 43440769. The reversal of 43440745 is 54704434.

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

It is not a de Polignac number, because 43440745 - 2¹⁵ = 43407977 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228541 + ... + 228730.

It is an arithmetic number, because the mean of its divisors is an integer number (6859080).

Almost surely, 2^43440745 is an apocalyptic number.

It is an amenable number.

43440745 is a deficient number, since it is larger than the sum of its proper divisors (11431895).

43440745 is a wasteful number, since it uses less digits than its factorization.

43440745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457295.

The product of its (nonzero) digits is 26880, while the sum is 31.

The square root of 43440745 is about 6590.9593383665. The cubic root of 43440745 is about 351.5327202891.

The spelling of 43440745 in words is "forty-three million, four hundred forty thousand, seven hundred forty-five".