40055334240 has 48 divisors (see below), whose sum is σ = 126174304368. Its totient is φ = 10681422336.

The previous prime is 40055334223. The next prime is 40055334247. The reversal of 40055334240 is 4243355004.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 40055334198 and 40055334207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40055334247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41723827 + ... + 41724786.

It is an arithmetic number, because the mean of its divisors is an integer number (2628631341).

Almost surely, 2^40055334240 is an apocalyptic number.

40055334240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40055334240 is an abundant number, since it is smaller than the sum of its proper divisors (86118970128).

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

40055334240 is a wasteful number, since it uses less digits than its factorization.

40055334240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83448631 (or 83448623 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 40055334240 its reverse (4243355004), we get a palindrome (44298689244).

The spelling of 40055334240 in words is "forty billion, fifty-five million, three hundred thirty-four thousand, two hundred forty".