2140994 has 4 divisors (see below), whose sum is σ = 3211494. Its totient is φ = 1070496.

The previous prime is 2140993. The next prime is 2141033. The reversal of 2140994 is 4990412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2140369 + 625 = 1463^2 + 25^2 .

It is a Curzon number.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 535247 + ... + 535250.

2^2140994 is an apocalyptic number.

2140994 is a deficient number, since it is larger than the sum of its proper divisors (1070500).

2140994 is a wasteful number, since it uses less digits than its factorization.

2140994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070499.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 2140994 is about 1463.2135865963. The cubic root of 2140994 is about 128.8858232965.

The spelling of 2140994 in words is "two million, one hundred forty thousand, nine hundred ninety-four".