142100244 has 120 divisors (see below), whose sum is σ = 436564128. Its totient is φ = 39735360.

The previous prime is 142100227. The next prime is 142100281. The reversal of 142100244 is 442001241.

142100244 is a `hidden beast` number, since 1 + 421 + 0 + 0 + 244 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 44799 + ... + 47865.

Almost surely, 2^142100244 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 142100244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218282064).

142100244 is an abundant number, since it is smaller than the sum of its proper divisors (294463884).

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

142100244 is a wasteful number, since it uses less digits than its factorization.

142100244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3107 (or 3096 counting only the distinct ones).

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

The square root of 142100244 is about 11920.5806905536. The cubic root of 142100244 is about 521.8330817874.

Adding to 142100244 its reverse (442001241), we get a palindrome (584101485).

The spelling of 142100244 in words is "one hundred forty-two million, one hundred thousand, two hundred forty-four".