2857097280 has 112 divisors (see below), whose sum is σ = 9098060544. Its totient is φ = 759644160.

The previous prime is 2857097261. The next prime is 2857097359. The reversal of 2857097280 is 827907582.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 334665 + ... + 343095.

Almost surely, 2^2857097280 is an apocalyptic number.

2857097280 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 2857097280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4549030272).

2857097280 is an abundant number, since it is smaller than the sum of its proper divisors (6240963264).

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

2857097280 is a wasteful number, since it uses less digits than its factorization.

2857097280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8804 (or 8794 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 48.

The square root of 2857097280 is about 53451.8220456515. The cubic root of 2857097280 is about 1418.9758667225.

The spelling of 2857097280 in words is "two billion, eight hundred fifty-seven million, ninety-seven thousand, two hundred eighty".