40400448404 has 6 divisors (see below), whose sum is σ = 70700784714. Its totient is φ = 20200224200.

The previous prime is 40400448397. The next prime is 40400448421. The reversal of 40400448404 is 40484400404.

It can be written as a sum of positive squares in only one way, i.e., 40372864900 + 27583504 = 200930^2 + 5252^2 .

It is a super-2 number, since 2×40400448404² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 5050056047 + ... + 5050056054.

It is an arithmetic number, because the mean of its divisors is an integer number (11783464119).

Almost surely, 2^40400448404 is an apocalyptic number.

It is an amenable number.

40400448404 is a deficient number, since it is larger than the sum of its proper divisors (30300336310).

40400448404 is a wasteful number, since it uses less digits than its factorization.

40400448404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10100112105 (or 10100112103 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 32.

Adding to 40400448404 its reverse (40484400404), we get a palindrome (80884848808).

The spelling of 40400448404 in words is "forty billion, four hundred million, four hundred forty-eight thousand, four hundred four".