1028310 has 32 divisors (see below), whose sum is σ = 2495232. Its totient is φ = 271200.

The previous prime is 1028309. The next prime is 1028317. The reversal of 1028310 is 138201.

It is a happy number.

It is a super-2 number, since 2×1028310² = 2114842912200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1028310.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4417 + ... + 4643.

It is an arithmetic number, because the mean of its divisors is an integer number (77976).

2^1028310 is an apocalyptic number.

1028310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1028310 is an abundant number, since it is smaller than the sum of its proper divisors (1466922).

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

1028310 is a wasteful number, since it uses less digits than its factorization.

1028310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1028310 is about 1014.0562114597. The cubic root of 1028310 is about 100.9348990662.

The spelling of 1028310 in words is "one million, twenty-eight thousand, three hundred ten".