2142830 has 8 divisors (see below), whose sum is σ = 3857112. Its totient is φ = 857128.

The previous prime is 2142823. The next prime is 2142857. The reversal of 2142830 is 382412.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107132 + ... + 107151.

It is an arithmetic number, because the mean of its divisors is an integer number (482139).

2^2142830 is an apocalyptic number.

2142830 is a deficient number, since it is larger than the sum of its proper divisors (1714282).

2142830 is a wasteful number, since it uses less digits than its factorization.

2142830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214290.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2142830 is about 1463.8408383427. The cubic root of 2142830 is about 128.9226545942.

The spelling of 2142830 in words is "two million, one hundred forty-two thousand, eight hundred thirty".