40244446557045 has 48 divisors (see below), whose sum is σ = 73389741031152. Its totient is φ = 20374248453120.

The previous prime is 40244446556969. The next prime is 40244446557067. The reversal of 40244446557045 is 54075564444204.

40244446557045 is a `hidden beast` number, since 4 + 0 + 2 + 4 + 4 + 4 + 4 + 65 + 570 + 4 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 849755799684 + 39394690757361 = 921822^2 + 6276519^2 .

It is not a de Polignac number, because 40244446557045 - 2⁹ = 40244446556533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40244446556982 and 40244446557000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 294698062 + ... + 294834591.

It is an arithmetic number, because the mean of its divisors is an integer number (1528952938149).

Almost surely, 2^{40244446557045} is an apocalyptic number.

40244446557045 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40244446557045 is a deficient number, since it is larger than the sum of its proper divisors (33145294474107).

40244446557045 is a wasteful number, since it uses less digits than its factorization.

40244446557045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589532742 (or 589532739 counting only the distinct ones).

The product of its (nonzero) digits is 43008000, while the sum is 54.

The spelling of 40244446557045 in words is "forty trillion, two hundred forty-four billion, four hundred forty-six million, five hundred fifty-seven thousand, forty-five".