1001241644 has 24 divisors (see below), whose sum is σ = 1890123648. Its totient is φ = 461335680.

The previous prime is 1001241643. The next prime is 1001241671. The reversal of 1001241644 is 4461421001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1001241643) 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, 15704 + ... + 47424.

It is an arithmetic number, because the mean of its divisors is an integer number (78755152).

Almost surely, 2^1001241644 is an apocalyptic number.

It is an amenable number.

1001241644 is a deficient number, since it is larger than the sum of its proper divisors (888882004).

1001241644 is a wasteful number, since it uses less digits than its factorization.

1001241644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32345 (or 32343 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 1001241644 is about 31642.4026268550. The cubic root of 1001241644 is about 1000.4137101536.

Adding to 1001241644 its reverse (4461421001), we get a palindrome (5462662645).

The spelling of 1001241644 in words is "one billion, one million, two hundred forty-one thousand, six hundred forty-four".