40310645 has 8 divisors (see below), whose sum is σ = 48825504. Its totient is φ = 31946704.

The previous prime is 40310639. The next prime is 40310653. The reversal of 40310645 is 54601304.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40310645 - 2¹⁶ = 40245109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40310645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37139 + ... + 38208.

It is an arithmetic number, because the mean of its divisors is an integer number (6103188).

Almost surely, 2^40310645 is an apocalyptic number.

It is an amenable number.

40310645 is a deficient number, since it is larger than the sum of its proper divisors (8514859).

40310645 is a wasteful number, since it uses less digits than its factorization.

40310645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75459.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 40310645 is about 6349.0664668123. The cubic root of 40310645 is about 342.8782331190.

Adding to 40310645 its reverse (54601304), we get a palindrome (94911949).

The spelling of 40310645 in words is "forty million, three hundred ten thousand, six hundred forty-five".