40205220040 has 64 divisors (see below), whose sum is σ = 91499414400. Its totient is φ = 15898249728.

The previous prime is 40205220023. The next prime is 40205220059. The reversal of 40205220040 is 4002250204.

40205220040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 2074716 + ... + 2094004.

It is an arithmetic number, because the mean of its divisors is an integer number (1429678350).

Almost surely, 2^40205220040 is an apocalyptic number.

40205220040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40205220040 is an abundant number, since it is smaller than the sum of its proper divisors (51294194360).

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

40205220040 is a wasteful number, since it uses less digits than its factorization.

40205220040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19894 (or 19890 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

Adding to 40205220040 its reverse (4002250204), we get a palindrome (44207470244).

The spelling of 40205220040 in words is "forty billion, two hundred five million, two hundred twenty thousand, forty".