142919680 has 96 divisors (see below), whose sum is σ = 363537720. Its totient is φ = 53739520.

The previous prime is 142919657. The next prime is 142919683. The reversal of 142919680 is 86919241.

It can be written as a sum of positive squares in 4 ways, for example, as 117679104 + 25240576 = 10848^2 + 5024^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142919683) 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, 173670 + ... + 174490.

Almost surely, 2^142919680 is an apocalyptic number.

142919680 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 142919680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181768860).

142919680 is an abundant number, since it is smaller than the sum of its proper divisors (220618040).

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

142919680 is an equidigital number, since it uses as much as digits as its factorization.

142919680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865 (or 845 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 142919680 is about 11954.9019234789. The cubic root of 142919680 is about 522.8342282878.

The spelling of 142919680 in words is "one hundred forty-two million, nine hundred nineteen thousand, six hundred eighty".