1001444229 has 80 divisors (see below), whose sum is σ = 1646568000. Its totient is φ = 604350720.

The previous prime is 1001444209. The next prime is 1001444237. The reversal of 1001444229 is 9224441001.

It is a happy number.

It is not a de Polignac number, because 1001444229 - 2²⁰ = 1000395653 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001444209) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3722707 + ... + 3722975.

It is an arithmetic number, because the mean of its divisors is an integer number (20582100).

Almost surely, 2^1001444229 is an apocalyptic number.

1001444229 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1001444229 is a deficient number, since it is larger than the sum of its proper divisors (645123771).

1001444229 is a wasteful number, since it uses less digits than its factorization.

1001444229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400 (or 391 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1001444229 is about 31645.6036283083. The cubic root of 1001444229 is about 1000.4811780972.

The spelling of 1001444229 in words is "one billion, one million, four hundred forty-four thousand, two hundred twenty-nine".