142342320 has 80 divisors (see below), whose sum is σ = 450685440. Its totient is φ = 37147392.

The previous prime is 142342303. The next prime is 142342327. The reversal of 142342320 is 23243241.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×142342320² = 40522672125964800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142342327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4971 + ... + 17589.

It is an arithmetic number, because the mean of its divisors is an integer number (5633568).

Almost surely, 2^142342320 is an apocalyptic number.

142342320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142342320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225342720).

142342320 is an abundant number, since it is smaller than the sum of its proper divisors (308343120).

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

142342320 is a wasteful number, since it uses less digits than its factorization.

142342320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12682 (or 12676 counting only the distinct ones).

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

The square root of 142342320 is about 11930.7300698658. The cubic root of 142342320 is about 522.1292379758.

Adding to 142342320 its reverse (23243241), we get a palindrome (165585561).

The spelling of 142342320 in words is "one hundred forty-two million, three hundred forty-two thousand, three hundred twenty".