2141573840 has 80 divisors (see below), whose sum is σ = 5714634240. Its totient is φ = 731136000.

The previous prime is 2141573831. The next prime is 2141573867. The reversal of 2141573840 is 483751412.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 2141573840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125840 + ... + 141840.

It is an arithmetic number, because the mean of its divisors is an integer number (71432928).

Almost surely, 2^2141573840 is an apocalyptic number.

2141573840 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 2141573840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2857317120).

2141573840 is an abundant number, since it is smaller than the sum of its proper divisors (3573060400).

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

2141573840 is a wasteful number, since it uses less digits than its factorization.

2141573840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16260 (or 16254 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 2141573840 is about 46277.1416576262. The cubic root of 2141573840 is about 1288.9745752035.

The spelling of 2141573840 in words is "two billion, one hundred forty-one million, five hundred seventy-three thousand, eight hundred forty".