1001444012 has 24 divisors (see below), whose sum is σ = 1829893632. Its totient is φ = 478645200.

The previous prime is 1001444011. The next prime is 1001444047. The reversal of 1001444012 is 2104441001.

It is a super-2 number, since 2×1001444012² = 2005780218341312288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1001444011) 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, 215837 + ... + 220427.

It is an arithmetic number, because the mean of its divisors is an integer number (76245568).

Almost surely, 2^1001444012 is an apocalyptic number.

It is an amenable number.

1001444012 is a deficient number, since it is larger than the sum of its proper divisors (828449620).

1001444012 is a wasteful number, since it uses less digits than its factorization.

1001444012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6989 (or 6987 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1001444012 is about 31645.6001997118. The cubic root of 1001444012 is about 1000.4811058334.

Adding to 1001444012 its reverse (2104441001), we get a palindrome (3105885013).

The spelling of 1001444012 in words is "one billion, one million, four hundred forty-four thousand, twelve".