2897544840 has 192 divisors, whose sum is σ = 9246778560. Its totient is φ = 726243840.

The previous prime is 2897544833. The next prime is 2897544847. The reversal of 2897544840 is 484457982.

It is an interprime number because it is at equal distance from previous prime (2897544833) and next prime (2897544847).

It is not an unprimeable number, because it can be changed into a prime (2897544847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9140362 + ... + 9140678.

It is an arithmetic number, because the mean of its divisors is an integer number (48160305).

Almost surely, 2^2897544840 is an apocalyptic number.

2897544840 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 2897544840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4623389280).

2897544840 is an abundant number, since it is smaller than the sum of its proper divisors (6349233720).

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

2897544840 is a wasteful number, since it uses less digits than its factorization.

2897544840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580 (or 557 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 51.

The square root of 2897544840 is about 53828.8476562521. The cubic root of 2897544840 is about 1425.6406008672.

The spelling of 2897544840 in words is "two billion, eight hundred ninety-seven million, five hundred forty-four thousand, eight hundred forty".