1040940 has 36 divisors (see below), whose sum is σ = 3158064. Its totient is φ = 277536.

The previous prime is 1040939. The next prime is 1040947. The reversal of 1040940 is 490401.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1040947) 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 11 ways as a sum of consecutive naturals, for example, 2712 + ... + 3071.

It is an arithmetic number, because the mean of its divisors is an integer number (87724).

2^1040940 is an apocalyptic number.

1040940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1040940 is an abundant number, since it is smaller than the sum of its proper divisors (2117124).

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

1040940 is a wasteful number, since it uses less digits than its factorization.

1040940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5798 (or 5793 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1040940 is about 1020.2646715436. The cubic root of 1040940 is about 101.3464558644.

The spelling of 1040940 in words is "one million, forty thousand, nine hundred forty".