40343245 has 16 divisors (see below), whose sum is σ = 51144192. Its totient is φ = 30502080.

The previous prime is 40343239. The next prime is 40343267. The reversal of 40343245 is 54234304.

It is not a de Polignac number, because 40343245 - 2⁷ = 40343117 is a prime.

It is a Duffinian number.

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, 3639 + ... + 9691.

It is an arithmetic number, because the mean of its divisors is an integer number (3196512).

Almost surely, 2^40343245 is an apocalyptic number.

It is an amenable number.

40343245 is a deficient number, since it is larger than the sum of its proper divisors (10800947).

40343245 is a wasteful number, since it uses less digits than its factorization.

40343245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6132.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 40343245 is about 6351.6332545260. The cubic root of 40343245 is about 342.9706389712.

Adding to 40343245 its reverse (54234304), we get a palindrome (94577549).

The spelling of 40343245 in words is "forty million, three hundred forty-three thousand, two hundred forty-five".