2889018720 has 144 divisors (see below), whose sum is σ = 11267212320. Its totient is φ = 660344832.

The previous prime is 2889018689. The next prime is 2889018749. The reversal of 2889018720 is 278109882.

It is a happy number.

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 (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, 133225 + ... + 153384.

It is an arithmetic number, because the mean of its divisors is an integer number (78244530).

Almost surely, 2^2889018720 is an apocalyptic number.

2889018720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2889018720 is an abundant number, since it is smaller than the sum of its proper divisors (8378193600).

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

2889018720 is a wasteful number, since it uses less digits than its factorization.

2889018720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286637 (or 286626 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 2889018720 is about 53749.5927426432. The cubic root of 2889018720 is about 1424.2408957857.

The spelling of 2889018720 in words is "two billion, eight hundred eighty-nine million, eighteen thousand, seven hundred twenty".