1391060 has 24 divisors (see below), whose sum is σ = 3187296. Its totient is φ = 505760.

The previous prime is 1391057. The next prime is 1391081. The reversal of 1391060 is 601931.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 2942 + ... + 3381.

It is an arithmetic number, because the mean of its divisors is an integer number (132804).

2^1391060 is an apocalyptic number.

1391060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1391060 is an abundant number, since it is smaller than the sum of its proper divisors (1796236).

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

1391060 is a wasteful number, since it uses less digits than its factorization.

1391060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6343 (or 6341 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 1391060 is about 1179.4320667169. The cubic root of 1391060 is about 111.6302646129.

Adding to 1391060 its reverse (601931), we get a palindrome (1992991).

The spelling of 1391060 in words is "one million, three hundred ninety-one thousand, sixty".