1002001244 has 6 divisors (see below), whose sum is σ = 1753502184. Its totient is φ = 501000620.

The previous prime is 1002001237. The next prime is 1002001277. The reversal of 1002001244 is 4421002001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125250152 + ... + 125250159.

It is an arithmetic number, because the mean of its divisors is an integer number (292250364).

Almost surely, 2^1002001244 is an apocalyptic number.

It is an amenable number.

1002001244 is a deficient number, since it is larger than the sum of its proper divisors (751500940).

1002001244 is a wasteful number, since it uses less digits than its factorization.

1002001244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250500315 (or 250500313 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1002001244 is about 31654.4032324099. The cubic root of 1002001244 is about 1000.6666368299. Note that the first 4 decimals are identical.

Adding to 1002001244 its reverse (4421002001), we get a palindrome (5423003245).

The spelling of 1002001244 in words is "one billion, two million, one thousand, two hundred forty-four".