1040985 has 32 divisors (see below), whose sum is σ = 2021760. Its totient is φ = 504000.

The previous prime is 1040981. The next prime is 1040989. The reversal of 1040985 is 5890401.

It is an interprime number because it is at equal distance from previous prime (1040981) and next prime (1040989).

It is not a de Polignac number, because 1040985 - 2² = 1040981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1040981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1135 + ... + 1835.

It is an arithmetic number, because the mean of its divisors is an integer number (63180).

2^1040985 is an apocalyptic number.

1040985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1040985 is a deficient number, since it is larger than the sum of its proper divisors (980775).

1040985 is a wasteful number, since it uses less digits than its factorization.

1040985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726 (or 720 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1040985 is about 1020.2867244064. The cubic root of 1040985 is about 101.3479162511.

It can be divided in two parts, 1040 and 985, that added together give a square (2025 = 45²).

The spelling of 1040985 in words is "one million, forty thousand, nine hundred eighty-five".