2899888440 has 32 divisors (see below), whose sum is σ = 8699665680. Its totient is φ = 773303552.

The previous prime is 2899888403. The next prime is 2899888447. The reversal of 2899888440 is 448889982.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2899888447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12082749 + ... + 12082988.

Almost surely, 2^2899888440 is an apocalyptic number.

2899888440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2899888440 is an abundant number, since it is smaller than the sum of its proper divisors (5799777240).

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

2899888440 is a wasteful number, since it uses less digits than its factorization.

2899888440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24165751 (or 24165747 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 60.

The square root of 2899888440 is about 53850.6122527869. The cubic root of 2899888440 is about 1426.0248607730.

The spelling of 2899888440 in words is "two billion, eight hundred ninety-nine million, eight hundred eighty-eight thousand, four hundred forty".