40424442402 has 32 divisors (see below), whose sum is σ = 81989288640. Its totient is φ = 13285606400.

The previous prime is 40424442391. The next prime is 40424442403. The reversal of 40424442402 is 20424442404.

It is a self number, because there is not a number n which added to its sum of digits gives 40424442402.

It is not an unprimeable number, because it can be changed into a prime (40424442403) 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, 81277 + ... + 295727.

It is an arithmetic number, because the mean of its divisors is an integer number (2562165270).

Almost surely, 2^40424442402 is an apocalyptic number.

40424442402 is an abundant number, since it is smaller than the sum of its proper divisors (41564846238).

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

40424442402 is a wasteful number, since it uses less digits than its factorization.

40424442402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214898.

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

Adding to 40424442402 its reverse (20424442404), we get a palindrome (60848884806).

It can be divided in two parts, 4042 and 4442402, that added together give a palindrome (4446444).

The spelling of 40424442402 in words is "forty billion, four hundred twenty-four million, four hundred forty-two thousand, four hundred two".