1002011244 has 24 divisors (see below), whose sum is σ = 2517874800. Its totient is φ = 308311104.

The previous prime is 1002011239. The next prime is 1002011249. The reversal of 1002011244 is 4421102001.

It is an interprime number because it is at equal distance from previous prime (1002011239) and next prime (1002011249).

It is not an unprimeable number, because it can be changed into a prime (1002011249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3211419 + ... + 3211730.

It is an arithmetic number, because the mean of its divisors is an integer number (104911450).

Almost surely, 2^1002011244 is an apocalyptic number.

It is an amenable number.

1002011244 is an abundant number, since it is smaller than the sum of its proper divisors (1515863556).

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

1002011244 is a wasteful number, since it uses less digits than its factorization.

1002011244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6423169 (or 6423167 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1002011244 is about 31654.5611879236. The cubic root of 1002011244 is about 1000.6699657124.

Adding to 1002011244 its reverse (4421102001), we get a palindrome (5423113245).

The spelling of 1002011244 in words is "one billion, two million, eleven thousand, two hundred forty-four".