40490242608656 has 20 divisors (see below), whose sum is σ = 78487219986000. Its totient is φ = 20235476160672.

The previous prime is 40490242608649. The next prime is 40490242608667. The reversal of 40490242608656 is 65680624209404.

It is a super-2 number, since 2×40490242608656² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602786846 + ... + 602854013.

It is an arithmetic number, because the mean of its divisors is an integer number (3924360999300).

Almost surely, 2^{40490242608656} is an apocalyptic number.

It is an amenable number.

40490242608656 is a deficient number, since it is larger than the sum of its proper divisors (37996977377344).

40490242608656 is a wasteful number, since it uses less digits than its factorization.

40490242608656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205642966 (or 1205642960 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 56.

The spelling of 40490242608656 in words is "forty trillion, four hundred ninety billion, two hundred forty-two million, six hundred eight thousand, six hundred fifty-six".