1012143444 has 48 divisors (see below), whose sum is σ = 2553566400. Its totient is φ = 310176000.

The previous prime is 1012143443. The next prime is 1012143463. The reversal of 1012143444 is 4443412101.

It is a super-2 number, since 2×1012143444² = 2048868702464362272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012143443) 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 15 ways as a sum of consecutive naturals, for example, 26232 + ... + 52080.

It is an arithmetic number, because the mean of its divisors is an integer number (53199300).

Almost surely, 2^1012143444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1012143444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1276783200).

1012143444 is an abundant number, since it is smaller than the sum of its proper divisors (1541422956).

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

1012143444 is a wasteful number, since it uses less digits than its factorization.

1012143444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26120 (or 26118 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1012143444 is about 31814.2019230406. The cubic root of 1012143444 is about 1004.0315395139.

Adding to 1012143444 its reverse (4443412101), we get a palindrome (5455555545).

The spelling of 1012143444 in words is "one billion, twelve million, one hundred forty-three thousand, four hundred forty-four".