40800124928 has 32 divisors (see below), whose sum is σ = 81599070270. Its totient is φ = 20400046080.

The previous prime is 40800124913. The next prime is 40800124951. The reversal of 40800124928 is 82942100804.

It can be written as a sum of positive squares in only one way, i.e., 40436383744 + 363741184 = 201088^2 + 19072^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 40800124891 and 40800124900.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 589793 + ... + 655328.

Almost surely, 2^40800124928 is an apocalyptic number.

It is an amenable number.

40800124928 is a deficient number, since it is larger than the sum of its proper divisors (40798945342).

40800124928 is an frugal number, since it uses more digits than its factorization.

40800124928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245151 (or 1245123 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The spelling of 40800124928 in words is "forty billion, eight hundred million, one hundred twenty-four thousand, nine hundred twenty-eight".