1001389768 has 16 divisors (see below), whose sum is σ = 1878180480. Its totient is φ = 500541648.

The previous prime is 1001389759. The next prime is 1001389787. The reversal of 1001389768 is 8679831001.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11505 + ... + 46207.

It is an arithmetic number, because the mean of its divisors is an integer number (117386280).

Almost surely, 2^1001389768 is an apocalyptic number.

It is an amenable number.

1001389768 is a deficient number, since it is larger than the sum of its proper divisors (876790712).

1001389768 is a wasteful number, since it uses less digits than its factorization.

1001389768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38316 (or 38312 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 1001389768 is about 31644.7431337339. The cubic root of 1001389768 is about 1000.4630415594.

The spelling of 1001389768 in words is "one billion, one million, three hundred eighty-nine thousand, seven hundred sixty-eight".