1001398936 has 16 divisors (see below), whose sum is σ = 1908404640. Its totient is φ = 492491040.

The previous prime is 1001398877. The next prime is 1001398939. The reversal of 1001398936 is 6398931001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001398939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1025536 + ... + 1026511.

It is an arithmetic number, because the mean of its divisors is an integer number (119275290).

Almost surely, 2^1001398936 is an apocalyptic number.

It is an amenable number.

1001398936 is a deficient number, since it is larger than the sum of its proper divisors (907005704).

1001398936 is a wasteful number, since it uses less digits than its factorization.

1001398936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052114 (or 2052110 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 1001398936 is about 31644.8879915856. The cubic root of 1001398936 is about 1000.4660947220.

The spelling of 1001398936 in words is "one billion, one million, three hundred ninety-eight thousand, nine hundred thirty-six".