142880384 has 32 divisors (see below), whose sum is σ = 292347300. Its totient is φ = 69507072.

The previous prime is 142880369. The next prime is 142880389. The reversal of 142880384 is 483088241.

It can be written as a sum of positive squares in 2 ways, for example, as 132894784 + 9985600 = 11528^2 + 3160^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (142880389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10349 + ... + 19820.

Almost surely, 2^142880384 is an apocalyptic number.

It is an amenable number.

142880384 is an abundant number, since it is smaller than the sum of its proper divisors (149466916).

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

142880384 is an equidigital number, since it uses as much as digits as its factorization.

142880384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30220 (or 30208 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 142880384 is about 11953.2583005639. The cubic root of 142880384 is about 522.7863058531.

The spelling of 142880384 in words is "one hundred forty-two million, eight hundred eighty thousand, three hundred eighty-four".