2108897280 has 432 divisors, whose sum is σ = 8520581160. Its totient is φ = 481001472.

The previous prime is 2108897269. The next prime is 2108897291. The reversal of 2108897280 is 827988012.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2108897269) and next prime (2108897291).

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 35 ways as a sum of consecutive naturals, for example, 4515607 + ... + 4516073.

Almost surely, 2^2108897280 is an apocalyptic number.

2108897280 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 2108897280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4260290580).

2108897280 is an abundant number, since it is smaller than the sum of its proper divisors (6411683880).

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

2108897280 is a wasteful number, since it uses less digits than its factorization.

2108897280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514 (or 484 counting only the distinct ones).

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

The square root of 2108897280 is about 45922.7316260695. The cubic root of 2108897280 is about 1282.3851361396.

The spelling of 2108897280 in words is "two billion, one hundred eight million, eight hundred ninety-seven thousand, two hundred eighty".