2142930 has 32 divisors (see below), whose sum is σ = 5231808. Its totient is φ = 561600.

The previous prime is 2142923. The next prime is 2142941. The reversal of 2142930 is 392412.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2142897 and 2142906.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1245 + ... + 2415.

It is an arithmetic number, because the mean of its divisors is an integer number (163494).

2^2142930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2142930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2615904).

2142930 is an abundant number, since it is smaller than the sum of its proper divisors (3088878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2142930 is a wasteful number, since it uses less digits than its factorization.

2142930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2142930 is about 1463.8749946631. The cubic root of 2142930 is about 128.9246600520.

The spelling of 2142930 in words is "two million, one hundred forty-two thousand, nine hundred thirty".