2238870 has 32 divisors (see below), whose sum is σ = 5521248. Its totient is φ = 580608.

The previous prime is 2238823. The next prime is 2238931. The reversal of 2238870 is 788322.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

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, 102 + ... + 2118.

It is an arithmetic number, because the mean of its divisors is an integer number (172539).

2^2238870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2238870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2760624).

2238870 is an abundant number, since it is smaller than the sum of its proper divisors (3282378).

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

2238870 is a wasteful number, since it uses less digits than its factorization.

2238870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2064.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 2238870 is about 1496.2854005837. The cubic root of 2238870 is about 130.8206468917.

The spelling of 2238870 in words is "two million, two hundred thirty-eight thousand, eight hundred seventy".