142344216 has 120 divisors (see below), whose sum is σ = 463892220. Its totient is φ = 40660704.

The previous prime is 142344199. The next prime is 142344229. The reversal of 142344216 is 612443241.

It is a happy number.

142344216 is a `hidden beast` number, since 1 + 4 + 234 + 421 + 6 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 142344216.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 29511 + ... + 33993.

Almost surely, 2^142344216 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 142344216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231946110).

142344216 is an abundant number, since it is smaller than the sum of its proper divisors (321548004).

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

142344216 is a wasteful number, since it uses less digits than its factorization.

142344216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4515 (or 4495 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 142344216 is about 11930.8095282759. The cubic root of 142344216 is about 522.1315562197.

Adding to 142344216 its reverse (612443241), we get a palindrome (754787457).

The spelling of 142344216 in words is "one hundred forty-two million, three hundred forty-four thousand, two hundred sixteen".