1001436144 has 40 divisors (see below), whose sum is σ = 2642092800. Its totient is φ = 326708928.

The previous prime is 1001436133. The next prime is 1001436157. The reversal of 1001436144 is 4416341001.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219694 + ... + 224205.

It is an arithmetic number, because the mean of its divisors is an integer number (66052320).

Almost surely, 2^1001436144 is an apocalyptic number.

It is an amenable number.

1001436144 is an abundant number, since it is smaller than the sum of its proper divisors (1640656656).

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

1001436144 is a wasteful number, since it uses less digits than its factorization.

1001436144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443957 (or 443951 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1001436144 is about 31645.4758851878. The cubic root of 1001436144 is about 1000.4784856816.

Adding to 1001436144 its reverse (4416341001), we get a palindrome (5417777145).

The spelling of 1001436144 in words is "one billion, one million, four hundred thirty-six thousand, one hundred forty-four".