2142705392 has 90 divisors (see below), whose sum is σ = 4608274248. Its totient is φ = 963192384.

The previous prime is 2142705353. The next prime is 2142705401. The reversal of 2142705392 is 2935072412.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 16871633 + ... + 16871759.

Almost surely, 2^2142705392 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 2142705392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2304137124).

2142705392 is an abundant number, since it is smaller than the sum of its proper divisors (2465568856).

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

2142705392 is a wasteful number, since it uses less digits than its factorization.

2142705392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 2142705392 is about 46289.3658630144. The cubic root of 2142705392 is about 1289.2015554616.

The spelling of 2142705392 in words is "two billion, one hundred forty-two million, seven hundred five thousand, three hundred ninety-two".