142769680 has 80 divisors (see below), whose sum is σ = 344352960. Its totient is φ = 55005696.

The previous prime is 142769659. The next prime is 142769681. The reversal of 142769680 is 86967241.

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

It is not an unprimeable number, because it can be changed into a prime (142769681) 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, 411267 + ... + 411613.

It is an arithmetic number, because the mean of its divisors is an integer number (4304412).

Almost surely, 2^142769680 is an apocalyptic number.

142769680 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 142769680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172176480).

142769680 is an abundant number, since it is smaller than the sum of its proper divisors (201583280).

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

142769680 is a wasteful number, since it uses less digits than its factorization.

142769680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536 (or 530 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 142769680 is about 11948.6266993324. The cubic root of 142769680 is about 522.6512523510.

The spelling of 142769680 in words is "one hundred forty-two million, seven hundred sixty-nine thousand, six hundred eighty".