2102697280 has 112 divisors (see below), whose sum is σ = 5143170816. Its totient is φ = 818432000.

The previous prime is 2102697277. The next prime is 2102697281. The reversal of 2102697280 is 827962012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102697281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3774762 + ... + 3775318.

It is an arithmetic number, because the mean of its divisors is an integer number (45921168).

Almost surely, 2^2102697280 is an apocalyptic number.

2102697280 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 2102697280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2571585408).

2102697280 is an abundant number, since it is smaller than the sum of its proper divisors (3040473536).

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

2102697280 is a wasteful number, since it uses less digits than its factorization.

2102697280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872 (or 862 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 2102697280 is about 45855.1772431423. The cubic root of 2102697280 is about 1281.1271971773.

The spelling of 2102697280 in words is "two billion, one hundred two million, six hundred ninety-seven thousand, two hundred eighty".