40544246728 has 32 divisors (see below), whose sum is σ = 79515172800. Its totient is φ = 19344411328.

The previous prime is 40544246707. The next prime is 40544246741. The reversal of 40544246728 is 82764244504.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185851 + ... + 340042.

It is an arithmetic number, because the mean of its divisors is an integer number (2484849150).

Almost surely, 2^40544246728 is an apocalyptic number.

It is an amenable number.

40544246728 is a deficient number, since it is larger than the sum of its proper divisors (38970926072).

40544246728 is a wasteful number, since it uses less digits than its factorization.

40544246728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526341 (or 526337 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 46.

The spelling of 40544246728 in words is "forty billion, five hundred forty-four million, two hundred forty-six thousand, seven hundred twenty-eight".