40204044024420 has 48 divisors (see below), whose sum is σ = 115316965306368. Its totient is φ = 10459588688640.

The previous prime is 40204044024409. The next prime is 40204044024421. The reversal of 40204044024420 is 2442044040204.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (40204044024421) 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, 8171551204 + ... + 8171556123.

It is an arithmetic number, because the mean of its divisors is an integer number (2402436777216).

Almost surely, 2^{40204044024420} is an apocalyptic number.

It is an amenable number.

40204044024420 is an abundant number, since it is smaller than the sum of its proper divisors (75112921281948).

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

40204044024420 is a wasteful number, since it uses less digits than its factorization.

40204044024420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16343107380 (or 16343107378 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 40204044024420 its reverse (2442044040204), we get a palindrome (42646088064624).

The spelling of 40204044024420 in words is "forty trillion, two hundred four billion, forty-four million, twenty-four thousand, four hundred twenty".