142455984 has 80 divisors (see below), whose sum is σ = 408140544. Its totient is φ = 42451200.

The previous prime is 142455979. The next prime is 142456021. The reversal of 142455984 is 489554241.

142455984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29997 + ... + 34419.

Almost surely, 2^142455984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142455984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204070272).

142455984 is an abundant number, since it is smaller than the sum of its proper divisors (265684560).

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

142455984 is a wasteful number, since it uses less digits than its factorization.

142455984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4506 (or 4500 counting only the distinct ones).

The product of its digits is 230400, while the sum is 42.

The square root of 142455984 is about 11935.4926165617. The cubic root of 142455984 is about 522.2681788706.

The spelling of 142455984 in words is "one hundred forty-two million, four hundred fifty-five thousand, nine hundred eighty-four".