40220220400240 has 20 divisors (see below), whose sum is σ = 93512012430744. Its totient is φ = 16088088160064.

The previous prime is 40220220400231. The next prime is 40220220400249. The reversal of 40220220400240 is 4200402202204.

It is a happy number.

40220220400240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (40220220400231) and next prime (40220220400249).

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

It is a super-2 number, since 2×40220220400240² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40220220400249) 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 3 ways as a sum of consecutive naturals, for example, 251376377422 + ... + 251376377581.

Almost surely, 2^{40220220400240} is an apocalyptic number.

40220220400240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40220220400240 is an abundant number, since it is smaller than the sum of its proper divisors (53291792030504).

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

40220220400240 is a wasteful number, since it uses less digits than its factorization.

40220220400240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502752755016 (or 502752755010 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 40220220400240 its reverse (4200402202204), we get a palindrome (44420622602444).

The spelling of 40220220400240 in words is "forty trillion, two hundred twenty billion, two hundred twenty million, four hundred thousand, two hundred forty".