40345013 has 8 divisors (see below), whose sum is σ = 42182208. Its totient is φ = 38514784.

The previous prime is 40345001. The next prime is 40345021. The reversal of 40345013 is 31054304.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40345013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40345093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12770 + ... + 15612.

It is an arithmetic number, because the mean of its divisors is an integer number (5272776).

Almost surely, 2^40345013 is an apocalyptic number.

It is an amenable number.

40345013 is a deficient number, since it is larger than the sum of its proper divisors (1837195).

40345013 is a wasteful number, since it uses less digits than its factorization.

40345013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3483.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 40345013 is about 6351.7724298026. The cubic root of 40345013 is about 342.9756490064.

Adding to 40345013 its reverse (31054304), we get a palindrome (71399317).

The spelling of 40345013 in words is "forty million, three hundred forty-five thousand, thirteen".