40400400443 has 8 divisors (see below), whose sum is σ = 43549145136. Its totient is φ = 37257516000.

The previous prime is 40400400437. The next prime is 40400400497. The reversal of 40400400443 is 34400400404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40400400443 - 2¹⁶ = 40400334907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40400400043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1450733 + ... + 1478318.

It is an arithmetic number, because the mean of its divisors is an integer number (5443643142).

Almost surely, 2^40400400443 is an apocalyptic number.

40400400443 is a deficient number, since it is larger than the sum of its proper divisors (3148744693).

40400400443 is a wasteful number, since it uses less digits than its factorization.

40400400443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2930125.

The product of its (nonzero) digits is 3072, while the sum is 23.

Adding to 40400400443 its reverse (34400400404), we get a palindrome (74800800847).

The spelling of 40400400443 in words is "forty billion, four hundred million, four hundred thousand, four hundred forty-three".