1001392 has 20 divisors (see below), whose sum is σ = 2217616. Its totient is φ = 429120.

The previous prime is 1001389. The next prime is 1001401. The reversal of 1001392 is 2931001.

1001392 is nontrivially palindromic in base 3.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4359 + ... + 4582.

2^1001392 is an apocalyptic number.

It is an amenable number.

1001392 is an abundant number, since it is smaller than the sum of its proper divisors (1216224).

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

1001392 is an equidigital number, since it uses as much as digits as its factorization.

1001392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8956 (or 8950 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1001392 is about 1000.6957579604. The cubic root of 1001392 is about 100.0463784870.

Adding to 1001392 its reverse (2931001), we get a palindrome (3932393).

The spelling of 1001392 in words is "one million, one thousand, three hundred ninety-two".