1900328 has 32 divisors (see below), whose sum is σ = 3839400. Its totient is φ = 878592.

The previous prime is 1900313. The next prime is 1900337. The reversal of 1900328 is 8230091.

It can be written as a sum of positive squares in 4 ways, for example, as 1435204 + 465124 = 1198^2 + 682^2 .

It is a super-2 number, since 2×1900328² = 7222493015168, which contains 22 as substring.

It is a plaindrome in base 12.

It is a zygodrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12026 + ... + 12182.

2^1900328 is an apocalyptic number.

It is an amenable number.

1900328 is an abundant number, since it is smaller than the sum of its proper divisors (1939072).

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

1900328 is a wasteful number, since it uses less digits than its factorization.

1900328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 265 counting only the distinct ones).

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

The square root of 1900328 is about 1378.5238481796. The cubic root of 1900328 is about 123.8633597186.

The spelling of 1900328 in words is "one million, nine hundred thousand, three hundred twenty-eight".