2239776 has 144 divisors (see below), whose sum is σ = 8019648. Its totient is φ = 576000.

The previous prime is 2239759. The next prime is 2239793. The reversal of 2239776 is 6779322.

It is an interprime number because it is at equal distance from previous prime (2239759) and next prime (2239793).

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 2239776.

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 23 ways as a sum of consecutive naturals, for example, 22126 + ... + 22226.

It is an arithmetic number, because the mean of its divisors is an integer number (55692).

2^2239776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2239776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4009824).

2239776 is an abundant number, since it is smaller than the sum of its proper divisors (5779872).

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

2239776 is a wasteful number, since it uses less digits than its factorization.

2239776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 124 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 2239776 is about 1496.5881196909. The cubic root of 2239776 is about 130.8382908404.

It can be divided in two parts, 223 and 9776, that added together give a palindrome (9999).

The spelling of 2239776 in words is "two million, two hundred thirty-nine thousand, seven hundred seventy-six".