2238985 has 32 divisors (see below), whose sum is σ = 3359232. Its totient is φ = 1397760.

The previous prime is 2238961. The next prime is 2238989. The reversal of 2238985 is 5898322.

It is not a de Polignac number, because 2238985 - 2⁵ = 2238953 is a prime.

It is a d-powerful number, because it can be written as 2⁸ + 2¹⁴ + 3 + 8³ + 9⁴ + 8⁶ + 5⁹ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2238989) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 31500 + ... + 31570.

It is an arithmetic number, because the mean of its divisors is an integer number (104976).

2^2238985 is an apocalyptic number.

It is an amenable number.

2238985 is a deficient number, since it is larger than the sum of its proper divisors (1120247).

2238985 is a wasteful number, since it uses less digits than its factorization.

2238985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153.

The product of its digits is 34560, while the sum is 37.

The square root of 2238985 is about 1496.3238285879. The cubic root of 2238985 is about 130.8228867295.

It can be divided in two parts, 2238 and 985, that added together give a palindrome (3223).

The spelling of 2238985 in words is "two million, two hundred thirty-eight thousand, nine hundred eighty-five".