1001144412 has 36 divisors (see below), whose sum is σ = 2546803896. Its totient is φ = 331587360.

The previous prime is 1001144369. The next prime is 1001144453. The reversal of 1001144412 is 2144411001.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82914 + ... + 94217.

Almost surely, 2^1001144412 is an apocalyptic number.

1001144412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1001144412 is an abundant number, since it is smaller than the sum of its proper divisors (1545659484).

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

1001144412 is a wasteful number, since it uses less digits than its factorization.

1001144412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177298 (or 177293 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1001144412 is about 31640.8661701920. The cubic root of 1001144412 is about 1000.3813252392.

Adding to 1001144412 its reverse (2144411001), we get a palindrome (3145555413).

The spelling of 1001144412 in words is "one billion, one million, one hundred forty-four thousand, four hundred twelve".