142188384 has 48 divisors (see below), whose sum is σ = 401959152. Its totient is φ = 43749888.

The previous prime is 142188383. The next prime is 142188433. The reversal of 142188384 is 483881241.

It is a happy number.

142188384 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142188383) 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, 55719 + ... + 58214.

It is an arithmetic number, because the mean of its divisors is an integer number (8374149).

Almost surely, 2^142188384 is an apocalyptic number.

It is an amenable number.

142188384 is an abundant number, since it is smaller than the sum of its proper divisors (259770768).

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

142188384 is a wasteful number, since it uses less digits than its factorization.

142188384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113959 (or 113951 counting only the distinct ones).

The product of its digits is 49152, while the sum is 39.

The square root of 142188384 is about 11924.2770850060. The cubic root of 142188384 is about 521.9409513219.

The spelling of 142188384 in words is "one hundred forty-two million, one hundred eighty-eight thousand, three hundred eighty-four".