40921288044 has 48 divisors (see below), whose sum is σ = 117517548288. Its totient is φ = 10792427328.

The previous prime is 40921287931. The next prime is 40921288063. The reversal of 40921288044 is 44088212904.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 40921287987 and 40921288005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18735762 + ... + 18737945.

It is an arithmetic number, because the mean of its divisors is an integer number (2448282256).

Almost surely, 2^40921288044 is an apocalyptic number.

It is an amenable number.

40921288044 is an abundant number, since it is smaller than the sum of its proper divisors (76596260244).

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

40921288044 is a wasteful number, since it uses less digits than its factorization.

40921288044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37473734 (or 37473732 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The spelling of 40921288044 in words is "forty billion, nine hundred twenty-one million, two hundred eighty-eight thousand, forty-four".