2140990 has 16 divisors (see below), whose sum is σ = 3871152. Its totient is φ = 852544.

The previous prime is 2140987. The next prime is 2140993. The reversal of 2140990 is 990412.

2140990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2140987) and next prime (2140993).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140993) 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 7 ways as a sum of consecutive naturals, for example, 3162 + ... + 3778.

It is an arithmetic number, because the mean of its divisors is an integer number (241947).

2^2140990 is an apocalyptic number.

2140990 is a deficient number, since it is larger than the sum of its proper divisors (1730162).

2140990 is a wasteful number, since it uses less digits than its factorization.

2140990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971.

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

The square root of 2140990 is about 1463.2122197412. The cubic root of 2140990 is about 128.8857430311.

The spelling of 2140990 in words is "two million, one hundred forty thousand, nine hundred ninety".