40000220420440 has 64 divisors (see below), whose sum is σ = 107329784002560. Its totient is φ = 13118084707200.

The previous prime is 40000220420429. The next prime is 40000220420521. The reversal of 40000220420440 is 4402402200004.

It is a congruent number.

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, 3105600736 + ... + 3105613615.

It is an arithmetic number, because the mean of its divisors is an integer number (1677027875040).

Almost surely, 2^{40000220420440} is an apocalyptic number.

40000220420440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40000220420440 is an abundant number, since it is smaller than the sum of its proper divisors (67329563582120).

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

40000220420440 is a wasteful number, since it uses less digits than its factorization.

40000220420440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6211214392 (or 6211214388 counting only the distinct ones).

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

Adding to 40000220420440 its reverse (4402402200004), we get a palindrome (44402622620444).

The spelling of 40000220420440 in words is "forty trillion, two hundred twenty million, four hundred twenty thousand, four hundred forty".