40040002002405 has 16 divisors (see below), whose sum is σ = 64075088998080. Its totient is φ = 21350972469888.

The previous prime is 40040002002383. The next prime is 40040002002419. The reversal of 40040002002405 is 50420020004004.

It is not a de Polignac number, because 40040002002405 - 2¹⁰ = 40040002001381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230864472 + ... + 231037841.

It is an arithmetic number, because the mean of its divisors is an integer number (4004693062380).

Almost surely, 2^{40040002002405} is an apocalyptic number.

It is an amenable number.

40040002002405 is a deficient number, since it is larger than the sum of its proper divisors (24035086995675).

40040002002405 is a wasteful number, since it uses less digits than its factorization.

40040002002405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461908100.

The product of its (nonzero) digits is 1280, while the sum is 21.

Adding to 40040002002405 its reverse (50420020004004), we get a palindrome (90460022006409).

The spelling of 40040002002405 in words is "forty trillion, forty billion, two million, two thousand, four hundred five".