142441530 has 192 divisors, whose sum is σ = 453869568. Its totient is φ = 28237440.

The previous prime is 142441489. The next prime is 142441543. The reversal of 142441530 is 35144241.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 142441530.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 371719 + ... + 372101.

It is an arithmetic number, because the mean of its divisors is an integer number (2363904).

Almost surely, 2^142441530 is an apocalyptic number.

142441530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142441530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226934784).

142441530 is an abundant number, since it is smaller than the sum of its proper divisors (311428038).

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

142441530 is a wasteful number, since it uses less digits than its factorization.

142441530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 142441530 is about 11934.8870962402. The cubic root of 142441530 is about 522.2505146552.

Adding to 142441530 its reverse (35144241), we get a palindrome (177585771).

The spelling of 142441530 in words is "one hundred forty-two million, four hundred forty-one thousand, five hundred thirty".