2144638 has 8 divisors (see below), whose sum is σ = 3269880. Its totient is φ = 1054680.

The previous prime is 2144629. The next prime is 2144641. The reversal of 2144638 is 8364412.

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

It is a d-powerful number, because it can be written as 2⁵ + 1 + 4 + 4³ + 6⁶ + 3⁶ + 8⁷ .

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, 8668 + ... + 8911.

It is an arithmetic number, because the mean of its divisors is an integer number (408735).

2^2144638 is an apocalyptic number.

2144638 is a deficient number, since it is larger than the sum of its proper divisors (1125242).

2144638 is a wasteful number, since it uses less digits than its factorization.

2144638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17642.

The product of its digits is 4608, while the sum is 28.

The square root of 2144638 is about 1464.4582616108. The cubic root of 2144638 is about 128.9589036408.

The spelling of 2144638 in words is "two million, one hundred forty-four thousand, six hundred thirty-eight".