1000144244 has 24 divisors (see below), whose sum is σ = 1911000000. Its totient is φ = 454222080.

The previous prime is 1000144241. The next prime is 1000144247. The reversal of 1000144244 is 4424410001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1000144241) and next prime (1000144247).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000144241) 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, 45857 + ... + 64055.

It is an arithmetic number, because the mean of its divisors is an integer number (79625000).

Almost surely, 2^1000144244 is an apocalyptic number.

It is an amenable number.

1000144244 is a deficient number, since it is larger than the sum of its proper divisors (910855756).

1000144244 is a wasteful number, since it uses less digits than its factorization.

1000144244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19463 (or 19461 counting only the distinct ones).

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

The square root of 1000144244 is about 31625.0572173395. The cubic root of 1000144244 is about 1000.0480790217.

Adding to 1000144244 its reverse (4424410001), we get a palindrome (5424554245).

It can be divided in two parts, 10001 and 44244, that multiplied together give a palindrome (442484244).

The spelling of 1000144244 in words is "one billion, one hundred forty-four thousand, two hundred forty-four".