43370045 has 4 divisors (see below), whose sum is σ = 52044060. Its totient is φ = 34696032.

The previous prime is 43370029. The next prime is 43370053. The reversal of 43370045 is 54007334.

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 20693401 + 22676644 = 4549^2 + 4762^2 .

It is a cyclic number.

It is not a de Polignac number, because 43370045 - 2⁴ = 43370029 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 43369996 and 43370023.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4337000 + ... + 4337009.

It is an arithmetic number, because the mean of its divisors is an integer number (13011015).

Almost surely, 2^43370045 is an apocalyptic number.

It is an amenable number.

43370045 is a deficient number, since it is larger than the sum of its proper divisors (8674015).

43370045 is an equidigital number, since it uses as much as digits as its factorization.

43370045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8674014.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 43370045 is about 6585.5937469601. The cubic root of 43370045 is about 351.3419097300.

Adding to 43370045 its reverse (54007334), we get a palindrome (97377379).

The spelling of 43370045 in words is "forty-three million, three hundred seventy thousand, forty-five".