40840080080 has 20 divisors (see below), whose sum is σ = 94953186372. Its totient is φ = 16336032000.

The previous prime is 40840080077. The next prime is 40840080089. The reversal of 40840080080 is 8008004804.

It can be written as a sum of positive squares in 2 ways, for example, as 25900396096 + 14939683984 = 160936^2 + 122228^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40840080089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255250421 + ... + 255250580.

Almost surely, 2^40840080080 is an apocalyptic number.

40840080080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40840080080 is an abundant number, since it is smaller than the sum of its proper divisors (54113106292).

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

40840080080 is a wasteful number, since it uses less digits than its factorization.

40840080080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510501014 (or 510501008 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 32.

Adding to 40840080080 its reverse (8008004804), we get a palindrome (48848084884).

The spelling of 40840080080 in words is "forty billion, eight hundred forty million, eighty thousand, eighty".