40404442224 has 80 divisors (see below), whose sum is σ = 110657361920. Its totient is φ = 12681411840.

The previous prime is 40404442223. The next prime is 40404442231. The reversal of 40404442224 is 42224440404.

It is a junction number, because it is equal to n+sod(n) for n = 40404442191 and 40404442200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40404442223) 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, 311884 + ... + 421995.

It is an arithmetic number, because the mean of its divisors is an integer number (1383217024).

Almost surely, 2^40404442224 is an apocalyptic number.

It is an amenable number.

40404442224 is an abundant number, since it is smaller than the sum of its proper divisors (70252919696).

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

40404442224 is a wasteful number, since it uses less digits than its factorization.

40404442224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733958 (or 733952 counting only the distinct ones).

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

Adding to 40404442224 its reverse (42224440404), we get a palindrome (82628882628).

The spelling of 40404442224 in words is "forty billion, four hundred four million, four hundred forty-two thousand, two hundred twenty-four".