142020342 has 48 divisors (see below), whose sum is σ = 313148160. Its totient is φ = 46512000.

The previous prime is 142020341. The next prime is 142020343. The reversal of 142020342 is 243020241.

142020342 is a `hidden beast` number, since 1 + 420 + 203 + 42 = 666.

It is an interprime number because it is at equal distance from previous prime (142020341) and next prime (142020343).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142020341) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 347034 + ... + 347442.

It is an arithmetic number, because the mean of its divisors is an integer number (6523920).

Almost surely, 2^142020342 is an apocalyptic number.

142020342 is an abundant number, since it is smaller than the sum of its proper divisors (171127818).

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

142020342 is a wasteful number, since it uses less digits than its factorization.

142020342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709 (or 706 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 142020342 is about 11917.2287886069. The cubic root of 142020342 is about 521.7352557194.

Adding to 142020342 its reverse (243020241), we get a palindrome (385040583).

The spelling of 142020342 in words is "one hundred forty-two million, twenty thousand, three hundred forty-two".