1040394 has 16 divisors (see below), whose sum is σ = 2091168. Its totient is φ = 345072.

The previous prime is 1040387. The next prime is 1040407. The reversal of 1040394 is 4930401.

It is a self number, because there is not a number n which added to its sum of digits gives 1040394.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1629 + ... + 2175.

It is an arithmetic number, because the mean of its divisors is an integer number (130698).

2^1040394 is an apocalyptic number.

1040394 is an abundant number, since it is smaller than the sum of its proper divisors (1050774).

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

1040394 is a wasteful number, since it uses less digits than its factorization.

1040394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1040394 is about 1019.9970588193. The cubic root of 1040394 is about 101.3287331514.

Adding to 1040394 its reverse (4930401), we get a palindrome (5970795).

It can be divided in two parts, 10 and 40394, that added together give a palindrome (40404).

The spelling of 1040394 in words is "one million, forty thousand, three hundred ninety-four".