1890213 has 16 divisors (see below), whose sum is σ = 2874816. Its totient is φ = 1094400.

The previous prime is 1890211. The next prime is 1890221. The reversal of 1890213 is 3120981.

It is not a de Polignac number, because 1890213 - 2¹ = 1890211 is a prime.

1890213 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1890211) 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 15 ways as a sum of consecutive naturals, for example, 763 + ... + 2088.

It is an arithmetic number, because the mean of its divisors is an integer number (179676).

2^1890213 is an apocalyptic number.

1890213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1890213 is a deficient number, since it is larger than the sum of its proper divisors (984603).

1890213 is a wasteful number, since it uses less digits than its factorization.

1890213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2884.

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

The square root of 1890213 is about 1374.8501736553. The cubic root of 1890213 is about 123.6432034429.

It can be divided in two parts, 18902 and 13, that added together give a triangular number (18915 = T₁₉₄).

The spelling of 1890213 in words is "one million, eight hundred ninety thousand, two hundred thirteen".