40800045 has 64 divisors (see below), whose sum is σ = 80123904. Its totient is φ = 17445120.

The previous prime is 40799989. The next prime is 40800073. The reversal of 40800045 is 54000804.

It is not a de Polignac number, because 40800045 - 2¹⁴ = 40783661 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40799994 and 40800030.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 48922 + ... + 49748.

It is an arithmetic number, because the mean of its divisors is an integer number (1251936).

Almost surely, 2^40800045 is an apocalyptic number.

It is an amenable number.

40800045 is a deficient number, since it is larger than the sum of its proper divisors (39323859).

40800045 is a wasteful number, since it uses less digits than its factorization.

40800045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 40800045 is about 6387.4912915792. The cubic root of 40800045 is about 344.2602507114.

Adding to 40800045 its reverse (54000804), we get a palindrome (94800849).

The spelling of 40800045 in words is "forty million, eight hundred thousand, forty-five".