40043144552 has 32 divisors (see below), whose sum is σ = 77686300800. Its totient is φ = 19327089600.

The previous prime is 40043144549. The next prime is 40043144563. The reversal of 40043144552 is 25544134004.

It is a super-2 number, since 2×40043144552² (a number of 22 digits) contains 22 as substring.

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, 1281677 + ... + 1312547.

It is an arithmetic number, because the mean of its divisors is an integer number (2427696900).

Almost surely, 2^40043144552 is an apocalyptic number.

It is an amenable number.

40043144552 is a deficient number, since it is larger than the sum of its proper divisors (37643156248).

40043144552 is a wasteful number, since it uses less digits than its factorization.

40043144552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36497 (or 36493 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 40043144552 its reverse (25544134004), we get a palindrome (65587278556).

The spelling of 40043144552 in words is "forty billion, forty-three million, one hundred forty-four thousand, five hundred fifty-two".