40344605 has 16 divisors (see below), whose sum is σ = 55570944. Its totient is φ = 27544320.

The previous prime is 40344593. The next prime is 40344637. The reversal of 40344605 is 50644304.

It is not a de Polignac number, because 40344605 - 2¹⁴ = 40328221 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, 6044 + ... + 10826.

It is an arithmetic number, because the mean of its divisors is an integer number (3473184).

Almost surely, 2^40344605 is an apocalyptic number.

It is an amenable number.

40344605 is a deficient number, since it is larger than the sum of its proper divisors (15226339).

40344605 is a wasteful number, since it uses less digits than its factorization.

40344605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5036.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 40344605 is about 6351.7403127017. The cubic root of 40344605 is about 342.9744928574.

Adding to 40344605 its reverse (50644304), we get a palindrome (90988909).

The spelling of 40344605 in words is "forty million, three hundred forty-four thousand, six hundred five".