142271424 has 112 divisors (see below), whose sum is σ = 421172640. Its totient is φ = 47093760.

The previous prime is 142271417. The next prime is 142271429. The reversal of 142271424 is 424172241.

142271424 is a `hidden beast` number, since 14 + 227 + 1 + 424 = 666.

It is a super-3 number, since 3×142271424³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142271429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 485422 + ... + 485714.

It is an arithmetic number, because the mean of its divisors is an integer number (3760470).

Almost surely, 2^142271424 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 142271424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210586320).

142271424 is an abundant number, since it is smaller than the sum of its proper divisors (278901216).

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

142271424 is a wasteful number, since it uses less digits than its factorization.

142271424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595 (or 579 counting only the distinct ones).

The product of its digits is 3584, while the sum is 27.

The square root of 142271424 is about 11927.7585488641. The cubic root of 142271424 is about 522.0425384808.

It can be divided in two parts, 14227 and 1424, that added together give a palindrome (15651).

The spelling of 142271424 in words is "one hundred forty-two million, two hundred seventy-one thousand, four hundred twenty-four".