40405340015 has 8 divisors (see below), whose sum is σ = 50050485888. Its totient is φ = 31281553440.

The previous prime is 40405339991. The next prime is 40405340021. The reversal of 40405340015 is 51004350404.

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

It is not a de Polignac number, because 40405340015 - 2³² = 36110372719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130339652 + ... + 130339961.

It is an arithmetic number, because the mean of its divisors is an integer number (6256310736).

Almost surely, 2^40405340015 is an apocalyptic number.

40405340015 is a deficient number, since it is larger than the sum of its proper divisors (9645145873).

40405340015 is a wasteful number, since it uses less digits than its factorization.

40405340015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260679649.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 40405340015 its reverse (51004350404), we get a palindrome (91409690419).

The spelling of 40405340015 in words is "forty billion, four hundred five million, three hundred forty thousand, fifteen".