2144858 has 4 divisors (see below), whose sum is σ = 3217290. Its totient is φ = 1072428.

The previous prime is 2144843. The next prime is 2144867. The reversal of 2144858 is 8584412.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2140369 + 4489 = 1463^2 + 67^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536213 + ... + 536216.

2^2144858 is an apocalyptic number.

2144858 is a deficient number, since it is larger than the sum of its proper divisors (1072432).

2144858 is a wasteful number, since it uses less digits than its factorization.

2144858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072431.

The product of its digits is 10240, while the sum is 32.

The square root of 2144858 is about 1464.5333727847. The cubic root of 2144858 is about 128.9633130856.

The spelling of 2144858 in words is "two million, one hundred forty-four thousand, eight hundred fifty-eight".