40204400531020 has 48 divisors (see below), whose sum is σ = 96952238611200. Its totient is φ = 13850319798720.

The previous prime is 40204400530981. The next prime is 40204400531021. The reversal of 40204400531020 is 2013500440204.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (40204400531021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4809134640 + ... + 4809142999.

It is an arithmetic number, because the mean of its divisors is an integer number (2019838304400).

Almost surely, 2^{40204400531020} is an apocalyptic number.

It is an amenable number.

40204400531020 is an abundant number, since it is smaller than the sum of its proper divisors (56747838080180).

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

40204400531020 is a wasteful number, since it uses less digits than its factorization.

40204400531020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9618277678 (or 9618277676 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 40204400531020 its reverse (2013500440204), we get a palindrome (42217900971224).

The spelling of 40204400531020 in words is "forty trillion, two hundred four billion, four hundred million, five hundred thirty-one thousand, twenty".