4450400442 has 16 divisors (see below), whose sum is σ = 9889778880. Its totient is φ = 1483466796.

The previous prime is 4450400399. The next prime is 4450400443. The reversal of 4450400442 is 2440040544.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (4450400443) 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, 41207358 + ... + 41207465.

It is an arithmetic number, because the mean of its divisors is an integer number (618111180).

Almost surely, 2^4450400442 is an apocalyptic number.

4450400442 is an abundant number, since it is smaller than the sum of its proper divisors (5439378438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4450400442 is a wasteful number, since it uses less digits than its factorization.

4450400442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82414834 (or 82414828 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 27.

The square root of 4450400442 is about 66711.3216927981. The cubic root of 4450400442 is about 1644.8754927122.

Adding to 4450400442 its reverse (2440040544), we get a palindrome (6890440986).

The spelling of 4450400442 in words is "four billion, four hundred fifty million, four hundred thousand, four hundred forty-two".