2142234 has 16 divisors (see below), whose sum is σ = 4760640. Its totient is φ = 714060.

The previous prime is 2142229. The next prime is 2142241. The reversal of 2142234 is 4322412.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹³ + 1 + 4² + 2¹⁵ + 2²¹ + 3² + 4⁶ .

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, 19782 + ... + 19889.

It is an arithmetic number, because the mean of its divisors is an integer number (297540).

2^2142234 is an apocalyptic number.

2142234 is an abundant number, since it is smaller than the sum of its proper divisors (2618406).

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

2142234 is a wasteful number, since it uses less digits than its factorization.

2142234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39682 (or 39676 counting only the distinct ones).

The product of its digits is 384, while the sum is 18.

The square root of 2142234 is about 1463.6372501409. The cubic root of 2142234 is about 128.9107007719.

Adding to 2142234 its reverse (4322412), we get a palindrome (6464646).

The spelling of 2142234 in words is "two million, one hundred forty-two thousand, two hundred thirty-four".