43474645 has 8 divisors (see below), whose sum is σ = 52205400. Its totient is φ = 34755840.

The previous prime is 43474619. The next prime is 43474657. The reversal of 43474645 is 54647434.

It can be written as a sum of positive squares in 4 ways, for example, as 7017201 + 36457444 = 2649^2 + 6038^2 .

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

It is not a de Polignac number, because 43474645 - 2¹⁹ = 42950357 is a prime.

It is a congruent number.

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, 10881 + ... + 14329.

It is an arithmetic number, because the mean of its divisors is an integer number (6525675).

Almost surely, 2^43474645 is an apocalyptic number.

It is an amenable number.

43474645 is a deficient number, since it is larger than the sum of its proper divisors (8730755).

43474645 is a wasteful number, since it uses less digits than its factorization.

43474645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5975.

The product of its digits is 161280, while the sum is 37.

The square root of 43474645 is about 6593.5305413716. The cubic root of 43474645 is about 351.6241387693.

The spelling of 43474645 in words is "forty-three million, four hundred seventy-four thousand, six hundred forty-five".