1890994 has 16 divisors (see below), whose sum is σ = 3412800. Its totient is φ = 767664.

The previous prime is 1890953. The next prime is 1890997. The reversal of 1890994 is 4990981.

It is not an unprimeable number, because it can be changed into a prime (1890997) 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, 3289 + ... + 3820.

It is an arithmetic number, because the mean of its divisors is an integer number (213300).

2^1890994 is an apocalyptic number.

1890994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1890994 is a deficient number, since it is larger than the sum of its proper divisors (1521806).

1890994 is a wasteful number, since it uses less digits than its factorization.

1890994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7137.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 1890994 is about 1375.1341752716. The cubic root of 1890994 is about 123.6602301034.

The spelling of 1890994 in words is "one million, eight hundred ninety thousand, nine hundred ninety-four".