2880028840 has 64 divisors (see below), whose sum is σ = 7005398400. Its totient is φ = 1059301632.

The previous prime is 2880028793. The next prime is 2880028849. The reversal of 2880028840 is 488200882.

It is a happy number.

It is a super-2 number, since 2×2880028840² = 16589132238463491200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 2880028793 and 2880028802.

It is not an unprimeable number, because it can be changed into a prime (2880028849) 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, 126231 + ... + 147289.

It is an arithmetic number, because the mean of its divisors is an integer number (109459350).

Almost surely, 2^2880028840 is an apocalyptic number.

2880028840 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 2880028840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3502699200).

2880028840 is an abundant number, since it is smaller than the sum of its proper divisors (4125369560).

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

2880028840 is a wasteful number, since it uses less digits than its factorization.

2880028840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21346 (or 21342 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 40.

The square root of 2880028840 is about 53665.9001601576. The cubic root of 2880028840 is about 1422.7620708914.

The spelling of 2880028840 in words is "two billion, eight hundred eighty million, twenty-eight thousand, eight hundred forty".