40004402402440 has 96 divisors (see below), whose sum is σ = 110864541444120. Its totient is φ = 12908983621632.

The previous prime is 40004402402429. The next prime is 40004402402467. The reversal of 40004402402440 is 4420420440004.

It can be written as a sum of positive squares in 4 ways, for example, as 31705750977796 + 8298651424644 = 5630786^2 + 2880738^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 40004402402399 and 40004402402408.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 600272839 + ... + 600339478.

Almost surely, 2^{40004402402440} is an apocalyptic number.

40004402402440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40004402402440 is an abundant number, since it is smaller than the sum of its proper divisors (70860139041680).

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

40004402402440 is a wasteful number, since it uses less digits than its factorization.

40004402402440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200612359 (or 1200612348 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 40004402402440 its reverse (4420420440004), we get a palindrome (44424822842444).

The spelling of 40004402402440 in words is "forty trillion, four billion, four hundred two million, four hundred two thousand, four hundred forty".