40400244400 has 30 divisors (see below), whose sum is σ = 97061588132. Its totient is φ = 16160097600.

The previous prime is 40400244397. The next prime is 40400244413. The reversal of 40400244400 is 444200404.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50499906 + ... + 50500705.

Almost surely, 2^40400244400 is an apocalyptic number.

40400244400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40400244400 is an abundant number, since it is smaller than the sum of its proper divisors (56661343732).

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

40400244400 is a wasteful number, since it uses less digits than its factorization.

40400244400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101000629 (or 101000618 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 40400244400 its reverse (444200404), we get a palindrome (40844444804).

The spelling of 40400244400 in words is "forty billion, four hundred million, two hundred forty-four thousand, four hundred".