2142102424 has 96 divisors (see below), whose sum is σ = 5318784000. Its totient is φ = 798262080.

The previous prime is 2142102421. The next prime is 2142102461. The reversal of 2142102424 is 4242012412.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 2142102395 and 2142102404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142102421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88377 + ... + 109975.

It is an arithmetic number, because the mean of its divisors is an integer number (55404000).

Almost surely, 2^2142102424 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 2142102424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2659392000).

2142102424 is an abundant number, since it is smaller than the sum of its proper divisors (3176681576).

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

2142102424 is a wasteful number, since it uses less digits than its factorization.

2142102424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21653 (or 21642 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 2142102424 is about 46282.8523753668. The cubic root of 2142102424 is about 1289.0806148641.

Adding to 2142102424 its reverse (4242012412), we get a palindrome (6384114836).

The spelling of 2142102424 in words is "two billion, one hundred forty-two million, one hundred two thousand, four hundred twenty-four".