1890916 has 12 divisors (see below), whose sum is σ = 3423420. Its totient is φ = 912800.

The previous prime is 1890913. The next prime is 1890923. The reversal of 1890916 is 6190981.

It can be written as a sum of positive squares in 2 ways, for example, as 1313316 + 577600 = 1146^2 + 760^2 .

It is not an unprimeable number, because it can be changed into a prime (1890913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8035 + ... + 8266.

It is an arithmetic number, because the mean of its divisors is an integer number (285285).

2^1890916 is an apocalyptic number.

It is an amenable number.

1890916 is a deficient number, since it is larger than the sum of its proper divisors (1532504).

1890916 is a wasteful number, since it uses less digits than its factorization.

1890916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16334 (or 16332 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 1890916 is about 1375.1058141103. The cubic root of 1890916 is about 123.6585298282.

The spelling of 1890916 in words is "one million, eight hundred ninety thousand, nine hundred sixteen".