2800140140 has 24 divisors (see below), whose sum is σ = 6720336672. Its totient is φ = 960048000.

The previous prime is 2800140121. The next prime is 2800140173. The reversal of 2800140140 is 410410082.

It is a Smith number, since the sum of its digits (20) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (20).

2800140140 is a modest number, since divided by 140140 gives 2800 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10000361 + ... + 10000640.

It is an arithmetic number, because the mean of its divisors is an integer number (280014028).

Almost surely, 2^2800140140 is an apocalyptic number.

2800140140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2800140140 is an abundant number, since it is smaller than the sum of its proper divisors (3920196532).

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

2800140140 is a wasteful number, since it uses less digits than its factorization.

2800140140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20001017 (or 20001015 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 2800140140 is about 52916.3504032544. The cubic root of 2800140140 is about 1409.4832605075.

The spelling of 2800140140 in words is "two billion, eight hundred million, one hundred forty thousand, one hundred forty".