40244400404 has 24 divisors (see below), whose sum is σ = 76020420840. Its totient is φ = 18531431424.

The previous prime is 40244400283. The next prime is 40244400439. The reversal of 40244400404 is 40400444204.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 24900100 + 40219500304 = 4990^2 + 200548^2 .

It is a super-2 number, since 2×40244400404² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 871169 + ... + 916200.

It is an arithmetic number, because the mean of its divisors is an integer number (3167517535).

Almost surely, 2^40244400404 is an apocalyptic number.

It is an amenable number.

40244400404 is a deficient number, since it is larger than the sum of its proper divisors (35776020436).

40244400404 is a wasteful number, since it uses less digits than its factorization.

40244400404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787819 (or 1787817 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 40244400404 its reverse (40400444204), we get a palindrome (80644844608).

The spelling of 40244400404 in words is "forty billion, two hundred forty-four million, four hundred thousand, four hundred four".