2089278 has 48 divisors (see below), whose sum is σ = 4914000. Its totient is φ = 639360.

The previous prime is 2089273. The next prime is 2089303. The reversal of 2089278 is 8729802.

It is a super-2 number, since 2×2089278² = 8730165122568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2089271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13948 + ... + 14096.

It is an arithmetic number, because the mean of its divisors is an integer number (102375).

2^2089278 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2089278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2457000).

2089278 is an abundant number, since it is smaller than the sum of its proper divisors (2824722).

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

2089278 is a wasteful number, since it uses less digits than its factorization.

2089278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 2089278 is about 1445.4334989891. The cubic root of 2089278 is about 127.8396021480.

It can be divided in two parts, 20 and 89278, that added together give a palindrome (89298).

The spelling of 2089278 in words is "two million, eighty-nine thousand, two hundred seventy-eight".