40244564128 has 24 divisors (see below), whose sum is σ = 81074081088. Its totient is φ = 19654321344.

The previous prime is 40244564119. The next prime is 40244564141. The reversal of 40244564128 is 82146544204.

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, 14622376 + ... + 14625127.

It is an arithmetic number, because the mean of its divisors is an integer number (3378086712).

Almost surely, 2^40244564128 is an apocalyptic number.

It is an amenable number.

40244564128 is an abundant number, since it is smaller than the sum of its proper divisors (40829516960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40244564128 is a wasteful number, since it uses less digits than its factorization.

40244564128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29247556 (or 29247548 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 40.

The spelling of 40244564128 in words is "forty billion, two hundred forty-four million, five hundred sixty-four thousand, one hundred twenty-eight".