2140304 has 10 divisors (see below), whose sum is σ = 4146870. Its totient is φ = 1070144.

The previous prime is 2140301. The next prime is 2140309. The reversal of 2140304 is 4030412.

It can be written as a sum of positive squares in only one way, i.e., 2016400 + 123904 = 1420^2 + 352^2 .

It is not an unprimeable number, because it can be changed into a prime (2140301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66869 + ... + 66900.

It is an arithmetic number, because the mean of its divisors is an integer number (414687).

2^2140304 is an apocalyptic number.

It is an amenable number.

2140304 is a deficient number, since it is larger than the sum of its proper divisors (2006566).

2140304 is a wasteful number, since it uses less digits than its factorization.

2140304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133777 (or 133771 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2140304 is about 1462.9777852039. The cubic root of 2140304 is about 128.8719760254.

Adding to 2140304 its reverse (4030412), we get a palindrome (6170716).

The spelling of 2140304 in words is "two million, one hundred forty thousand, three hundred four".