40302243 has 12 divisors (see below), whose sum is σ = 58467240. Its totient is φ = 26751456.

The previous prime is 40302217. The next prime is 40302247. The reversal of 40302243 is 34220304.

It is not a de Polignac number, because 40302243 - 2¹⁷ = 40171171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40302247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7513 + ... + 11706.

It is an arithmetic number, because the mean of its divisors is an integer number (4872270).

Almost surely, 2^40302243 is an apocalyptic number.

40302243 is a deficient number, since it is larger than the sum of its proper divisors (18164997).

40302243 is a wasteful number, since it uses less digits than its factorization.

40302243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19458 (or 19455 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 40302243 is about 6348.4047602528. The cubic root of 40302243 is about 342.8544092788.

Adding to 40302243 its reverse (34220304), we get a palindrome (74522547).

The spelling of 40302243 in words is "forty million, three hundred two thousand, two hundred forty-three".