1028590 has 8 divisors (see below), whose sum is σ = 1851480. Its totient is φ = 411432.

The previous prime is 1028581. The next prime is 1028597. The reversal of 1028590 is 958201.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51420 + ... + 51439.

It is an arithmetic number, because the mean of its divisors is an integer number (231435).

2^1028590 is an apocalyptic number.

1028590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1028590 is a deficient number, since it is larger than the sum of its proper divisors (822890).

1028590 is a wasteful number, since it uses less digits than its factorization.

1028590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102866.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 1028590 is about 1014.1942614707. The cubic root of 1028590 is about 100.9440594708.

The spelling of 1028590 in words is "one million, twenty-eight thousand, five hundred ninety".