2090941 has 4 divisors (see below), whose sum is σ = 2093884. Its totient is φ = 2088000.

The previous prime is 2090923. The next prime is 2090951. The reversal of 2090941 is 1490902.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2916 + 2088025 = 54^2 + 1445^2 .

It is a cyclic number.

It is not a de Polignac number, because 2090941 - 2¹³ = 2082749 is a prime.

It is a Duffinian number.

2090941 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2090951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331 + ... + 2071.

It is an arithmetic number, because the mean of its divisors is an integer number (523471).

2^2090941 is an apocalyptic number.

It is an amenable number.

2090941 is a deficient number, since it is larger than the sum of its proper divisors (2943).

2090941 is a wasteful number, since it uses less digits than its factorization.

2090941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2942.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 2090941 is about 1446.0086445108. The cubic root of 2090941 is about 127.8735119287.

Subtracting from 2090941 its sum of digits (25), we obtain a square (2090916 = 1446²).

The spelling of 2090941 in words is "two million, ninety thousand, nine hundred forty-one".