40402251415 has 16 divisors (see below), whose sum is σ = 51052446720. Its totient is φ = 30609839520.

The previous prime is 40402251401. The next prime is 40402251431. The reversal of 40402251415 is 51415220404.

40402251415 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40402251415 - 2¹¹ = 40402249367 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, 200610 + ... + 347920.

It is an arithmetic number, because the mean of its divisors is an integer number (3190777920).

Almost surely, 2^40402251415 is an apocalyptic number.

40402251415 is a deficient number, since it is larger than the sum of its proper divisors (10650195305).

40402251415 is a wasteful number, since it uses less digits than its factorization.

40402251415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150222.

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 40402251415 its reverse (51415220404), we get a palindrome (91817471819).

The spelling of 40402251415 in words is "forty billion, four hundred two million, two hundred fifty-one thousand, four hundred fifteen".