1890746 has 24 divisors (see below), whose sum is σ = 3362772. Its totient is φ = 792000.

The previous prime is 1890743. The next prime is 1890769. The reversal of 1890746 is 6470981.

It can be written as a sum of positive squares in 2 ways, for example, as 1890625 + 121 = 1375^2 + 11^2 .

It is a nialpdrome in base 12.

It is a zygodrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1890743) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2846 + ... + 3446.

2^1890746 is an apocalyptic number.

1890746 is a deficient number, since it is larger than the sum of its proper divisors (1472026).

1890746 is a wasteful number, since it uses less digits than its factorization.

1890746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638 (or 627 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 1890746 is about 1375.0439992960. The cubic root of 1890746 is about 123.6548239382.

The spelling of 1890746 in words is "one million, eight hundred ninety thousand, seven hundred forty-six".