40404320552 has 8 divisors (see below), whose sum is σ = 75758101050. Its totient is φ = 20202160272.

The previous prime is 40404320491. The next prime is 40404320617. The reversal of 40404320552 is 25502340404.

It can be written as a sum of positive squares in only one way, i.e., 38011741156 + 2392579396 = 194966^2 + 48914^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2525270027 + ... + 2525270042.

Almost surely, 2^40404320552 is an apocalyptic number.

It is an amenable number.

40404320552 is a deficient number, since it is larger than the sum of its proper divisors (35353780498).

40404320552 is a wasteful number, since it uses less digits than its factorization.

40404320552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5050540075 (or 5050540071 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 29.

Adding to 40404320552 its reverse (25502340404), we get a palindrome (65906660956).

The spelling of 40404320552 in words is "forty billion, four hundred four million, three hundred twenty thousand, five hundred fifty-two".