1031380 has 48 divisors (see below), whose sum is σ = 2540160. Its totient is φ = 344448.

The previous prime is 1031357. The next prime is 1031399. The reversal of 1031380 is 831301.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7351 + ... + 7489.

It is an arithmetic number, because the mean of its divisors is an integer number (52920).

2^1031380 is an apocalyptic number.

1031380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1031380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1270080).

1031380 is an abundant number, since it is smaller than the sum of its proper divisors (1508780).

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

1031380 is a wasteful number, since it uses less digits than its factorization.

1031380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208 (or 206 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1031380 is about 1015.5688061377. The cubic root of 1031380 is about 101.0352456802.

Adding to 1031380 its reverse (831301), we get a palindrome (1862681).

The spelling of 1031380 in words is "one million, thirty-one thousand, three hundred eighty".