1031394 has 32 divisors (see below), whose sum is σ = 2540160. Its totient is φ = 271872.

The previous prime is 1031357. The next prime is 1031399. The reversal of 1031394 is 4931301.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1031394.

It is not an unprimeable number, because it can be changed into a prime (1031399) 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 15 ways as a sum of consecutive naturals, for example, 399 + ... + 1490.

It is an arithmetic number, because the mean of its divisors is an integer number (79380).

2^1031394 is an apocalyptic number.

1031394 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1031394 is an abundant number, since it is smaller than the sum of its proper divisors (1508766).

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

1031394 is a wasteful number, since it uses less digits than its factorization.

1031394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 1031394 is about 1015.5756988034. The cubic root of 1031394 is about 101.0357028305.

Adding to 1031394 its reverse (4931301), we get a palindrome (5962695).

The spelling of 1031394 in words is "one million, thirty-one thousand, three hundred ninety-four".