40404420220240 has 40 divisors (see below), whose sum is σ = 94616106369120. Its totient is φ = 16045496370816.

The previous prime is 40404420220201. The next prime is 40404420220243. The reversal of 40404420220240 is 4202202440404.

40404420220240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 40404420220199 and 40404420220208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40404420220243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1816734394 + ... + 1816756633.

It is an arithmetic number, because the mean of its divisors is an integer number (2365402659228).

Almost surely, 2^{40404420220240} is an apocalyptic number.

40404420220240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40404420220240 is an abundant number, since it is smaller than the sum of its proper divisors (54211686148880).

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

40404420220240 is a wasteful number, since it uses less digits than its factorization.

40404420220240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3633491179 (or 3633491173 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 40404420220240 its reverse (4202202440404), we get a palindrome (44606622660644).

The spelling of 40404420220240 in words is "forty trillion, four hundred four billion, four hundred twenty million, two hundred twenty thousand, two hundred forty".