2142470 has 16 divisors (see below), whose sum is σ = 4207248. Its totient is φ = 779040.

The previous prime is 2142463. The next prime is 2142499. The reversal of 2142470 is 742412.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9629 + ... + 9848.

It is an arithmetic number, because the mean of its divisors is an integer number (262953).

2^2142470 is an apocalyptic number.

2142470 is a deficient number, since it is larger than the sum of its proper divisors (2064778).

2142470 is a wasteful number, since it uses less digits than its factorization.

2142470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19495.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 2142470 is about 1463.7178689898. The cubic root of 2142470 is about 128.9154344298.

Adding to 2142470 its reverse (742412), we get a palindrome (2884882).

The spelling of 2142470 in words is "two million, one hundred forty-two thousand, four hundred seventy".