1320028 has 12 divisors (see below), whose sum is σ = 2319352. Its totient is φ = 657360.

The previous prime is 1320023. The next prime is 1320031. The reversal of 1320028 is 8200231.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1319993 and 1320020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320023) 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, 826 + ... + 1822.

2^1320028 is an apocalyptic number.

It is an amenable number.

1320028 is a deficient number, since it is larger than the sum of its proper divisors (999324).

1320028 is a wasteful number, since it uses less digits than its factorization.

1320028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332 (or 1330 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1320028 is about 1148.9247146789. The cubic root of 1320028 is about 109.6969066724.

Adding to 1320028 its reverse (8200231), we get a palindrome (9520259).

The spelling of 1320028 in words is "one million, three hundred twenty thousand, twenty-eight".