142241420 has 24 divisors (see below), whose sum is σ = 305655504. Its totient is φ = 55573056.

The previous prime is 142241417. The next prime is 142241443. The reversal of 142241420 is 24142241.

142241420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 142241392 and 142241401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81839 + ... + 83558.

It is an arithmetic number, because the mean of its divisors is an integer number (12735646).

Almost surely, 2^142241420 is an apocalyptic number.

142241420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142241420 is an abundant number, since it is smaller than the sum of its proper divisors (163414084).

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

142241420 is a wasteful number, since it uses less digits than its factorization.

142241420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165449 (or 165447 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 142241420 is about 11926.5007441412. The cubic root of 142241420 is about 522.0058375863.

Adding to 142241420 its reverse (24142241), we get a palindrome (166383661).

The spelling of 142241420 in words is "one hundred forty-two million, two hundred forty-one thousand, four hundred twenty".