40400342425556 has 48 divisors (see below), whose sum is σ = 71704153382400. Its totient is φ = 19914240572928.

The previous prime is 40400342425427. The next prime is 40400342425591. The reversal of 40400342425556 is 65552424300404.

It is a happy number.

It is a super-2 number, since 2×40400342425556² (a number of 28 digits) contains 22 as substring.

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, 560231630 + ... + 560303738.

It is an arithmetic number, because the mean of its divisors is an integer number (1493836528800).

Almost surely, 2^{40400342425556} is an apocalyptic number.

It is an amenable number.

40400342425556 is a deficient number, since it is larger than the sum of its proper divisors (31303810956844).

40400342425556 is a wasteful number, since it uses less digits than its factorization.

40400342425556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74856 (or 74854 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 44.

The spelling of 40400342425556 in words is "forty trillion, four hundred billion, three hundred forty-two million, four hundred twenty-five thousand, five hundred fifty-six".