40420020204 has 18 divisors (see below), whose sum is σ = 102172828940. Its totient is φ = 13473340056.

The previous prime is 40420020197. The next prime is 40420020239. The reversal of 40420020204 is 40202002404.

40420020204 is a `hidden beast` number, since 40 + 420 + 0 + 2 + 0 + 204 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

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

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 561389134 + ... + 561389205.

Almost surely, 2^40420020204 is an apocalyptic number.

It is an amenable number.

40420020204 is an abundant number, since it is smaller than the sum of its proper divisors (61752808736).

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

40420020204 is a wasteful number, since it uses less digits than its factorization.

40420020204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122778349 (or 1122778344 counting only the distinct ones).

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

Adding to 40420020204 its reverse (40202002404), we get a palindrome (80622022608).

The spelling of 40420020204 in words is "forty billion, four hundred twenty million, twenty thousand, two hundred four".