1004140 has 12 divisors (see below), whose sum is σ = 2108736. Its totient is φ = 401648.

The previous prime is 1004137. The next prime is 1004141. The reversal of 1004140 is 414001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (1004141) by changing a digit.

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, 25084 + ... + 25123.

It is an arithmetic number, because the mean of its divisors is an integer number (175728).

2^1004140 is an apocalyptic number.

1004140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1004140 is an abundant number, since it is smaller than the sum of its proper divisors (1104596).

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

1004140 is a wasteful number, since it uses less digits than its factorization.

1004140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50216 (or 50214 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1004140 is about 1002.0678619734. The cubic root of 1004140 is about 100.1378099968.

Adding to 1004140 its reverse (414001), we get a palindrome (1418141).

The spelling of 1004140 in words is "one million, four thousand, one hundred forty".