142030434 has 64 divisors (see below), whose sum is σ = 368040960. Its totient is φ = 35484480.

The previous prime is 142030433. The next prime is 142030477. The reversal of 142030434 is 434030241.

142030434 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 (21).

It is a self number, because there is not a number n which added to its sum of digits gives 142030434.

It is not an unprimeable number, because it can be changed into a prime (142030433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3529 + ... + 17219.

It is an arithmetic number, because the mean of its divisors is an integer number (5750640).

Almost surely, 2^142030434 is an apocalyptic number.

142030434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142030434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184020480).

142030434 is an abundant number, since it is smaller than the sum of its proper divisors (226010526).

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

142030434 is a wasteful number, since it uses less digits than its factorization.

142030434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13735.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 142030434 is about 11917.6522016713. The cubic root of 142030434 is about 521.7476136380.

Adding to 142030434 its reverse (434030241), we get a palindrome (576060675).

The spelling of 142030434 in words is "one hundred forty-two million, thirty thousand, four hundred thirty-four".