402044044005 has 48 divisors (see below), whose sum is σ = 698113568880. Its totient is φ = 214043157504.

The previous prime is 402044043983. The next prime is 402044044009. The reversal of 402044044005 is 500440440204.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 72607074849 + 329436969156 = 269457^2 + 573966^2 .

It is not a de Polignac number, because 402044044005 - 2⁸ = 402044043749 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 402044044005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402044044009) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 107698119 + ... + 107701851.

It is an arithmetic number, because the mean of its divisors is an integer number (14544032685).

Almost surely, 2^402044044005 is an apocalyptic number.

402044044005 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

402044044005 is a deficient number, since it is larger than the sum of its proper divisors (296069524875).

402044044005 is a wasteful number, since it uses less digits than its factorization.

402044044005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7350 (or 7347 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

Adding to 402044044005 its reverse (500440440204), we get a palindrome (902484484209).

The spelling of 402044044005 in words is "four hundred two billion, forty-four million, forty-four thousand, five".