1001144402 has 8 divisors (see below), whose sum is σ = 1501884912. Its totient is φ = 500516100.

The previous prime is 1001144369. The next prime is 1001144453. The reversal of 1001144402 is 2044411001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1001144402² = 2004580227311875208, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 224 + ... + 44747.

It is an arithmetic number, because the mean of its divisors is an integer number (187735614).

Almost surely, 2^1001144402 is an apocalyptic number.

1001144402 is a deficient number, since it is larger than the sum of its proper divisors (500740510).

1001144402 is a wasteful number, since it uses less digits than its factorization.

1001144402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56104.

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

The square root of 1001144402 is about 31640.8660121685. The cubic root of 1001144402 is about 1000.3813219085.

Adding to 1001144402 its reverse (2044411001), we get a palindrome (3045555403).

The spelling of 1001144402 in words is "one billion, one million, one hundred forty-four thousand, four hundred two".