1144400442 has 8 divisors (see below), whose sum is σ = 2288800896. Its totient is φ = 381466812.

The previous prime is 1144400437. The next prime is 1144400447. The reversal of 1144400442 is 2440044411.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1144400437) and next prime (1144400447).

It is a sphenic number, since it is the product of 3 distinct primes.

1144400442 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1144400447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95366698 + ... + 95366709.

It is an arithmetic number, because the mean of its divisors is an integer number (286100112).

Almost surely, 2^1144400442 is an apocalyptic number.

1144400442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1144400442 is a wasteful number, since it uses less digits than its factorization.

1144400442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190733412.

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 1144400442 is about 33828.9881906036. The cubic root of 1144400442 is about 1045.9863224170.

Adding to 1144400442 its reverse (2440044411), we get a palindrome (3584444853).

The spelling of 1144400442 in words is "one billion, one hundred forty-four million, four hundred thousand, four hundred forty-two".