1005290 has 64 divisors (see below), whose sum is σ = 2298240. Its totient is φ = 311040.

The previous prime is 1005287. The next prime is 1005293. The reversal of 1005290 is 925001.

It is an interprime number because it is at equal distance from previous prime (1005287) and next prime (1005293).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1005293) 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 31 ways as a sum of consecutive naturals, for example, 27152 + ... + 27188.

It is an arithmetic number, because the mean of its divisors is an integer number (35910).

2^1005290 is an apocalyptic number.

1005290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1005290 is an abundant number, since it is smaller than the sum of its proper divisors (1292950).

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

1005290 is a wasteful number, since it uses less digits than its factorization.

1005290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1005290 is about 1002.6415112093. The cubic root of 1005290 is about 100.1760233095.

The spelling of 1005290 in words is "one million, five thousand, two hundred ninety".