2142370 has 8 divisors (see below), whose sum is σ = 3856284. Its totient is φ = 856944.

The previous prime is 2142353. The next prime is 2142377. The reversal of 2142370 is 732412.

It can be written as a sum of positive squares in 2 ways, for example, as 2128681 + 13689 = 1459^2 + 117^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2142377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107109 + ... + 107128.

2^2142370 is an apocalyptic number.

2142370 is a deficient number, since it is larger than the sum of its proper divisors (1713914).

2142370 is a wasteful number, since it uses less digits than its factorization.

2142370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214244.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 2142370 is about 1463.6837090027. The cubic root of 2142370 is about 128.9134286850.

Adding to 2142370 its reverse (732412), we get a palindrome (2874782).

The spelling of 2142370 in words is "two million, one hundred forty-two thousand, three hundred seventy".