1026645 has 8 divisors (see below), whose sum is σ = 1642656. Its totient is φ = 547536.

The previous prime is 1026593. The next prime is 1026661. The reversal of 1026645 is 5466201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1026645 - 2⁶ = 1026581 is a prime.

It is a Curzon number.

It is a nialpdrome in base 4 and base 16.

It is a zygodrome in base 4.

It is a congruent number.

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, 34207 + ... + 34236.

It is an arithmetic number, because the mean of its divisors is an integer number (205332).

2^1026645 is an apocalyptic number.

1026645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1026645 is a deficient number, since it is larger than the sum of its proper divisors (616011).

1026645 is an equidigital number, since it uses as much as digits as its factorization.

1026645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68451.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1026645 is about 1013.2349184666. The cubic root of 1026645 is about 100.8803930021.

The spelling of 1026645 in words is "one million, twenty-six thousand, six hundred forty-five".