2089393278 has 64 divisors (see below), whose sum is σ = 5027761152. Its totient is φ = 565931520.

The previous prime is 2089393261. The next prime is 2089393297. The reversal of 2089393278 is 8723939802.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2089393278.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99588 + ... + 118728.

It is an arithmetic number, because the mean of its divisors is an integer number (78558768).

Almost surely, 2^2089393278 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2089393278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2513880576).

2089393278 is an abundant number, since it is smaller than the sum of its proper divisors (2938367874).

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

2089393278 is a wasteful number, since it uses less digits than its factorization.

2089393278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19289.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The square root of 2089393278 is about 45709.8816231239. The cubic root of 2089393278 is about 1278.4195333065.

The spelling of 2089393278 in words is "two billion, eighty-nine million, three hundred ninety-three thousand, two hundred seventy-eight".