142856680 has 64 divisors (see below), whose sum is σ = 346291200. Its totient is φ = 52884480.

The previous prime is 142856647. The next prime is 142856683. The reversal of 142856680 is 86658241.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (142856683) 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, 26016 + ... + 31024.

It is an arithmetic number, because the mean of its divisors is an integer number (5410800).

Almost surely, 2^142856680 is an apocalyptic number.

142856680 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 142856680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173145600).

142856680 is an abundant number, since it is smaller than the sum of its proper divisors (203434520).

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

142856680 is a wasteful number, since it uses less digits than its factorization.

142856680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5074 (or 5070 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 40.

The square root of 142856680 is about 11952.2667306248. The cubic root of 142856680 is about 522.7573939955.

The spelling of 142856680 in words is "one hundred forty-two million, eight hundred fifty-six thousand, six hundred eighty".