1000001244 has 48 divisors (see below), whose sum is σ = 2593503360. Its totient is φ = 297311040.

The previous prime is 1000001237. The next prime is 1000001263. The reversal of 1000001244 is 4421000001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 64474 + ... + 78465.

It is an arithmetic number, because the mean of its divisors is an integer number (54031320).

Almost surely, 2^1000001244 is an apocalyptic number.

It is an amenable number.

1000001244 is an abundant number, since it is smaller than the sum of its proper divisors (1593502116).

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

1000001244 is a wasteful number, since it uses less digits than its factorization.

1000001244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143010 (or 143008 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1000001244 is about 31622.7962710447. The cubic root of 1000001244 is about 1000.0004146665. Note that the first 3 decimals are identical.

Adding to 1000001244 its reverse (4421000001), we get a palindrome (5421001245).

The spelling of 1000001244 in words is "one billion, one thousand, two hundred forty-four".