2889815040 has 792 divisors, whose sum is σ = 12548470272. Its totient is φ = 601620480.

The previous prime is 2889815039. The next prime is 2889815053. The reversal of 2889815040 is 405189882.

It is a happy number.

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 71 ways as a sum of consecutive naturals, for example, 93219825 + ... + 93219855.

Almost surely, 2^2889815040 is an apocalyptic number.

2889815040 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 2889815040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6274235136).

2889815040 is an abundant number, since it is smaller than the sum of its proper divisors (9658655232).

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

2889815040 is a wasteful number, since it uses less digits than its factorization.

2889815040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The square root of 2889815040 is about 53756.9999162900. Note that the first 4 decimals coincide. The cubic root of 2889815040 is about 1424.3717415194.

The spelling of 2889815040 in words is "two billion, eight hundred eighty-nine million, eight hundred fifteen thousand, forty".