2289930840 has 96 divisors (see below), whose sum is σ = 7526001600. Its totient is φ = 603778560.

The previous prime is 2289930829. The next prime is 2289930859. The reversal of 2289930840 is 480399822.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3696 + ... + 67775.

It is an arithmetic number, because the mean of its divisors is an integer number (78395850).

Almost surely, 2^2289930840 is an apocalyptic number.

2289930840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2289930840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3763000800).

2289930840 is an abundant number, since it is smaller than the sum of its proper divisors (5236070760).

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

2289930840 is a wasteful number, since it uses less digits than its factorization.

2289930840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71577 (or 71570 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 2289930840 is about 47853.2218351074. The cubic root of 2289930840 is about 1318.0770208965.

The spelling of 2289930840 in words is "two billion, two hundred eighty-nine million, nine hundred thirty thousand, eight hundred forty".