40220020404 has 36 divisors (see below), whose sum is σ = 103184701984. Its totient is φ = 13206573072.

The previous prime is 40220020369. The next prime is 40220020409. The reversal of 40220020404 is 40402002204.

40220020404 is a `hidden beast` number, since 40 + 2 + 200 + 20 + 404 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40220020409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8335072 + ... + 8339895.

Almost surely, 2^40220020404 is an apocalyptic number.

It is an amenable number.

40220020404 is an abundant number, since it is smaller than the sum of its proper divisors (62964681580).

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

40220020404 is a wasteful number, since it uses less digits than its factorization.

40220020404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16675044 (or 16675039 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 40220020404 its reverse (40402002204), we get a palindrome (80622022608).

The spelling of 40220020404 in words is "forty billion, two hundred twenty million, twenty thousand, four hundred four".