40400442011224 has 8 divisors (see below), whose sum is σ = 75750828771060. Its totient is φ = 20200221005608.

The previous prime is 40400442011201. The next prime is 40400442011227. The reversal of 40400442011224 is 42211024400404.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 40400442011192 and 40400442011201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40400442011227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2525027625694 + ... + 2525027625709.

Almost surely, 2^{40400442011224} is an apocalyptic number.

It is an amenable number.

40400442011224 is a deficient number, since it is larger than the sum of its proper divisors (35350386759836).

40400442011224 is a wasteful number, since it uses less digits than its factorization.

40400442011224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5050055251409 (or 5050055251405 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 40400442011224 its reverse (42211024400404), we get a palindrome (82611466411628).

The spelling of 40400442011224 in words is "forty trillion, four hundred billion, four hundred forty-two million, eleven thousand, two hundred twenty-four".