43800045 has 16 divisors (see below), whose sum is σ = 71975040. Its totient is φ = 22728384.

The previous prime is 43800037. The next prime is 43800061. The reversal of 43800045 is 54000834.

It is a happy number.

It is not a de Polignac number, because 43800045 - 2³ = 43800037 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 43799988 and 43800024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38905 + ... + 40014.

It is an arithmetic number, because the mean of its divisors is an integer number (4498440).

Almost surely, 2^43800045 is an apocalyptic number.

It is an amenable number.

43800045 is a deficient number, since it is larger than the sum of its proper divisors (28174995).

43800045 is a wasteful number, since it uses less digits than its factorization.

43800045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78964.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 43800045 is about 6618.1602428469. The cubic root of 43800045 is about 352.4992404792.

Adding to 43800045 its reverse (54000834), we get a palindrome (97800879).

The spelling of 43800045 in words is "forty-three million, eight hundred thousand, forty-five".