40400240444 has 24 divisors (see below), whose sum is σ = 74870989200. Its totient is φ = 19008901376.

The previous prime is 40400240443. The next prime is 40400240449. The reversal of 40400240444 is 44404200404.

It is a happy number.

40400240444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40400240443) 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, 426074 + ... + 512190.

It is an arithmetic number, because the mean of its divisors is an integer number (3119624550).

Almost surely, 2^40400240444 is an apocalyptic number.

It is an amenable number.

40400240444 is a deficient number, since it is larger than the sum of its proper divisors (34470748756).

40400240444 is a wasteful number, since it uses less digits than its factorization.

40400240444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93037 (or 93035 counting only the distinct ones).

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

Adding to 40400240444 its reverse (44404200404), we get a palindrome (84804440848).

The spelling of 40400240444 in words is "forty billion, four hundred million, two hundred forty thousand, four hundred forty-four".