2142655424 has 112 divisors (see below), whose sum is σ = 5266748928. Its totient is φ = 842185728.

The previous prime is 2142655399. The next prime is 2142655453. The reversal of 2142655424 is 4245562412.

It is a tau number, because it is divible by the number of its divisors (112).

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, 971507 + ... + 973709.

It is an arithmetic number, because the mean of its divisors is an integer number (47024544).

Almost surely, 2^2142655424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2142655424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2633374464).

2142655424 is an abundant number, since it is smaller than the sum of its proper divisors (3124093504).

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

2142655424 is a wasteful number, since it uses less digits than its factorization.

2142655424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2402 (or 2392 counting only the distinct ones).

The product of its digits is 76800, while the sum is 35.

The square root of 2142655424 is about 46288.8261246707. The cubic root of 2142655424 is about 1289.1915339682.

The spelling of 2142655424 in words is "two billion, one hundred forty-two million, six hundred fifty-five thousand, four hundred twenty-four".