40426220424 has 64 divisors (see below), whose sum is σ = 104076181440. Its totient is φ = 13075948800.

The previous prime is 40426220381. The next prime is 40426220449. The reversal of 40426220424 is 42402262404.

It is a junction number, because it is equal to n+sod(n) for n = 40426220391 and 40426220400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270199 + ... + 392249.

It is an arithmetic number, because the mean of its divisors is an integer number (1626190335).

Almost surely, 2^40426220424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40426220424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52038090720).

40426220424 is an abundant number, since it is smaller than the sum of its proper divisors (63649961016).

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

40426220424 is a wasteful number, since it uses less digits than its factorization.

40426220424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122470 (or 122466 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 40426220424 its reverse (42402262404), we get a palindrome (82828482828).

The spelling of 40426220424 in words is "forty billion, four hundred twenty-six million, two hundred twenty thousand, four hundred twenty-four".