40400000444 has 6 divisors (see below), whose sum is σ = 70700000784. Its totient is φ = 20200000220.

The previous prime is 40400000441. The next prime is 40400000491. The reversal of 40400000444 is 44400000404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40400000441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050000052 + ... + 5050000059.

It is an arithmetic number, because the mean of its divisors is an integer number (11783333464).

Almost surely, 2^40400000444 is an apocalyptic number.

It is an amenable number.

40400000444 is a deficient number, since it is larger than the sum of its proper divisors (30300000340).

40400000444 is a wasteful number, since it uses less digits than its factorization.

40400000444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10100000115 (or 10100000113 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 40400000444 its reverse (44400000404), we get a palindrome (84800000848).

The spelling of 40400000444 in words is "forty billion, four hundred million, four hundred forty-four", and thus it is an aban number.