2142646422 has 48 divisors (see below), whose sum is σ = 4995421632. Its totient is φ = 610896720.

The previous prime is 2142646369. The next prime is 2142646439. The reversal of 2142646422 is 2246462412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136933 + ... + 151775.

It is an arithmetic number, because the mean of its divisors is an integer number (104071284).

Almost surely, 2^2142646422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2142646422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2497710816).

2142646422 is an abundant number, since it is smaller than the sum of its proper divisors (2852775210).

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

2142646422 is a wasteful number, since it uses less digits than its factorization.

2142646422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15353 (or 15346 counting only the distinct ones).

The product of its digits is 36864, while the sum is 33.

The square root of 2142646422 is about 46288.7288872788. The cubic root of 2142646422 is about 1289.1897285265.

The spelling of 2142646422 in words is "two billion, one hundred forty-two million, six hundred forty-six thousand, four hundred twenty-two".