40042134402220 has 48 divisors (see below), whose sum is σ = 84261276415008. Its totient is φ = 15983970739200.

The previous prime is 40042134402181. The next prime is 40042134402251. The reversal of 40042134402220 is 2220443124004.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20330452 + ... + 22212868.

It is an arithmetic number, because the mean of its divisors is an integer number (1755443258646).

Almost surely, 2^{40042134402220} is an apocalyptic number.

It is an amenable number.

40042134402220 is an abundant number, since it is smaller than the sum of its proper divisors (44219142012788).

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

40042134402220 is a wasteful number, since it uses less digits than its factorization.

40042134402220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1884610 (or 1884608 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 40042134402220 its reverse (2220443124004), we get a palindrome (42262577526224).

The spelling of 40042134402220 in words is "forty trillion, forty-two billion, one hundred thirty-four million, four hundred two thousand, two hundred twenty".