142210002420 has 144 divisors (see below), whose sum is σ = 457789812480. Its totient is φ = 35610283008.

The previous prime is 142210002391. The next prime is 142210002439. The reversal of 142210002420 is 24200012241.

142210002420 is a `hidden beast` number, since 1 + 422 + 1 + 0 + 0 + 0 + 242 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 142210002393 and 142210002402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1290409 + ... + 1396271.

It is an arithmetic number, because the mean of its divisors is an integer number (3179095920).

Almost surely, 2^142210002420 is an apocalyptic number.

142210002420 is a gapful number since it is divisible by the number (10) 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 142210002420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228894906240).

142210002420 is an abundant number, since it is smaller than the sum of its proper divisors (315579810060).

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

142210002420 is a wasteful number, since it uses less digits than its factorization.

142210002420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106334 (or 106329 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 142210002420 its reverse (24200012241), we get a palindrome (166410014661).

The spelling of 142210002420 in words is "one hundred forty-two billion, two hundred ten million, two thousand, four hundred twenty".