1328190 has 16 divisors (see below), whose sum is σ = 3187728. Its totient is φ = 354176.

The previous prime is 1328183. The next prime is 1328203. The reversal of 1328190 is 918231.

It is a super-2 number, since 2×1328190² = 3528177352200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1328190.

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, 22107 + ... + 22166.

It is an arithmetic number, because the mean of its divisors is an integer number (199233).

2^1328190 is an apocalyptic number.

1328190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1328190 is an abundant number, since it is smaller than the sum of its proper divisors (1859538).

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

1328190 is a wasteful number, since it uses less digits than its factorization.

1328190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44283.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 1328190 is about 1152.4712577761. The cubic root of 1328190 is about 109.9225349915.

It can be divided in two parts, 13 and 28190, that added together give a triangular number (28203 = T₂₃₇).

The spelling of 1328190 in words is "one million, three hundred twenty-eight thousand, one hundred ninety".