40045332405413 has 16 divisors (see below), whose sum is σ = 42886630189440. Its totient is φ = 37308564961536.

The previous prime is 40045332405389. The next prime is 40045332405493. The reversal of 40045332405413 is 31450423354004.

It is a cyclic number.

It is not a de Polignac number, because 40045332405413 - 2¹⁶ = 40045332339877 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 (40045332405493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145854920 + ... + 146129217.

It is an arithmetic number, because the mean of its divisors is an integer number (2680414386840).

Almost surely, 2^{40045332405413} is an apocalyptic number.

It is an amenable number.

40045332405413 is a deficient number, since it is larger than the sum of its proper divisors (2841297784027).

40045332405413 is a wasteful number, since it uses less digits than its factorization.

40045332405413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291984316.

The product of its (nonzero) digits is 345600, while the sum is 38.

Adding to 40045332405413 its reverse (31450423354004), we get a palindrome (71495755759417).

The spelling of 40045332405413 in words is "forty trillion, forty-five billion, three hundred thirty-two million, four hundred five thousand, four hundred thirteen".