40055013 has 8 divisors (see below), whose sum is σ = 59340800. Its totient is φ = 26703324.

The previous prime is 40054999. The next prime is 40055017. The reversal of 40055013 is 31055004.

It is not a de Polignac number, because 40055013 - 2¹⁴ = 40038629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40055017) 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, 741733 + ... + 741786.

It is an arithmetic number, because the mean of its divisors is an integer number (7417600).

Almost surely, 2^40055013 is an apocalyptic number.

It is an amenable number.

40055013 is a deficient number, since it is larger than the sum of its proper divisors (19285787).

40055013 is a wasteful number, since it uses less digits than its factorization.

40055013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483528 (or 1483522 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 40055013 is about 6328.9029855102. The cubic root of 40055013 is about 342.1519023581.

Subtracting from 40055013 its reverse (31055004), we obtain a palindrome (9000009).

The spelling of 40055013 in words is "forty million, fifty-five thousand, thirteen".