400112444 has 12 divisors (see below), whose sum is σ = 700476000. Its totient is φ = 199976448.

The previous prime is 400112441. The next prime is 400112501. The reversal of 400112444 is 444211004.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400112441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7844 + ... + 29355.

It is an arithmetic number, because the mean of its divisors is an integer number (58373000).

Almost surely, 2^400112444 is an apocalyptic number.

It is an amenable number.

400112444 is a deficient number, since it is larger than the sum of its proper divisors (300363556).

400112444 is a wasteful number, since it uses less digits than its factorization.

400112444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39892 (or 39890 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 400112444 is about 20002.8109024707. The cubic root of 400112444 is about 736.8753344660.

Adding to 400112444 its reverse (444211004), we get a palindrome (844323448).

The spelling of 400112444 in words is "four hundred million, one hundred twelve thousand, four hundred forty-four".