2140561400 has 24 divisors (see below), whose sum is σ = 4976805720. Its totient is φ = 856224480.

The previous prime is 2140561399. The next prime is 2140561417. The reversal of 2140561400 is 41650412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5351204 + ... + 5351603.

It is an arithmetic number, because the mean of its divisors is an integer number (207366905).

Almost surely, 2^2140561400 is an apocalyptic number.

2140561400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2140561400 is an abundant number, since it is smaller than the sum of its proper divisors (2836244320).

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

2140561400 is a wasteful number, since it uses less digits than its factorization.

2140561400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10702823 (or 10702814 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2140561400 is about 46266.2014866144. The cubic root of 2140561400 is about 1288.7714200755.

The spelling of 2140561400 in words is "two billion, one hundred forty million, five hundred sixty-one thousand, four hundred".