142335420 has 24 divisors (see below), whose sum is σ = 398539344. Its totient is φ = 37956096.

The previous prime is 142335409. The next prime is 142335421. The reversal of 142335420 is 24533241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142335421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1186069 + ... + 1186188.

It is an arithmetic number, because the mean of its divisors is an integer number (16605806).

Almost surely, 2^142335420 is an apocalyptic number.

142335420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142335420 is an abundant number, since it is smaller than the sum of its proper divisors (256203924).

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

142335420 is a wasteful number, since it uses less digits than its factorization.

142335420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372269 (or 2372267 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 142335420 is about 11930.4408971337. The cubic root of 142335420 is about 522.1208011550.

Adding to 142335420 its reverse (24533241), we get a palindrome (166868661).

The spelling of 142335420 in words is "one hundred forty-two million, three hundred thirty-five thousand, four hundred twenty".