40407033664 has 28 divisors (see below), whose sum is σ = 80189145184. Its totient is φ = 20201894784.

The previous prime is 40407033659. The next prime is 40407033671. The reversal of 40407033664 is 46633070404.

It is a congruent number.

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, 1395397 + ... + 1424059.

Almost surely, 2^40407033664 is an apocalyptic number.

It is an amenable number.

40407033664 is a deficient number, since it is larger than the sum of its proper divisors (39782111520).

40407033664 is a wasteful number, since it uses less digits than its factorization.

40407033664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50702 (or 50692 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 37.

It can be divided in two parts, 404070 and 33664, that added together give a palindrome (437734).

The spelling of 40407033664 in words is "forty billion, four hundred seven million, thirty-three thousand, six hundred sixty-four".