2140370 has 16 divisors (see below), whose sum is σ = 3876120. Its totient is φ = 850944.

The previous prime is 2140367. The next prime is 2140387. The reversal of 2140370 is 730412.

It is a happy number.

It is a Cunningham number, because it is equal to 1463²+1.

2140370 is an esthetic number in base 11, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 4 ways, for example, as 769129 + 1371241 = 877^2 + 1171^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1376 + ... + 2484.

2^2140370 is an apocalyptic number.

2140370 is a deficient number, since it is larger than the sum of its proper divisors (1735750).

2140370 is a wasteful number, since it uses less digits than its factorization.

2140370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 2140370 is about 1463.0003417635. Note that the first 3 decimals coincide. The cubic root of 2140370 is about 128.8733006757.

Adding to 2140370 its reverse (730412), we get a palindrome (2870782).

The spelling of 2140370 in words is "two million, one hundred forty thousand, three hundred seventy".