1328090 has 16 divisors (see below), whose sum is σ = 2432160. Its totient is φ = 522000.

The previous prime is 1328087. The next prime is 1328099. The reversal of 1328090 is 908231.

It is not an unprimeable number, because it can be changed into a prime (1328099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 536 + ... + 1715.

It is an arithmetic number, because the mean of its divisors is an integer number (152010).

2^1328090 is an apocalyptic number.

1328090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1328090 is a deficient number, since it is larger than the sum of its proper divisors (1104070).

1328090 is a wasteful number, since it uses less digits than its factorization.

1328090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2317.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1328090 is about 1152.4278719295. The cubic root of 1328090 is about 109.9197762172.

The spelling of 1328090 in words is "one million, three hundred twenty-eight thousand, ninety".