2641898840 has 128 divisors (see below), whose sum is σ = 7064064000. Its totient is φ = 870041088.

The previous prime is 2641898813. The next prime is 2641898849. The reversal of 2641898840 is 488981462.

2641898840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2641898849) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1810031 + ... + 1811489.

It is an arithmetic number, because the mean of its divisors is an integer number (55188000).

Almost surely, 2^2641898840 is an apocalyptic number.

2641898840 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 2641898840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3532032000).

2641898840 is an abundant number, since it is smaller than the sum of its proper divisors (4422165160).

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

2641898840 is a wasteful number, since it uses less digits than its factorization.

2641898840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729 (or 1725 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 50.

The square root of 2641898840 is about 51399.4050549226. The cubic root of 2641898840 is about 1382.4159248740.

The spelling of 2641898840 in words is "two billion, six hundred forty-one million, eight hundred ninety-eight thousand, eight hundred forty".