40021413215 has 16 divisors (see below), whose sum is σ = 56006644800. Its totient is φ = 27443253600.

The previous prime is 40021413203. The next prime is 40021413217. The reversal of 40021413215 is 51231412004.

It is not a de Polignac number, because 40021413215 - 2¹⁶ = 40021347679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40021413217) 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, 11666336 + ... + 11669765.

It is an arithmetic number, because the mean of its divisors is an integer number (3500415300).

Almost surely, 2^40021413215 is an apocalyptic number.

40021413215 is a deficient number, since it is larger than the sum of its proper divisors (15985231585).

40021413215 is an equidigital number, since it uses as much as digits as its factorization.

40021413215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23336127 (or 23336113 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 40021413215 its reverse (51231412004), we get a palindrome (91252825219).

The spelling of 40021413215 in words is "forty billion, twenty-one million, four hundred thirteen thousand, two hundred fifteen".