142381828 has 24 divisors (see below), whose sum is σ = 253621088. Its totient is φ = 69926976.

The previous prime is 142381823. The next prime is 142381829. The reversal of 142381828 is 828183241.

It is not an unprimeable number, because it can be changed into a prime (142381823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81775 + ... + 83497.

Almost surely, 2^142381828 is an apocalyptic number.

It is an amenable number.

142381828 is a deficient number, since it is larger than the sum of its proper divisors (111239260).

142381828 is a wasteful number, since it uses less digits than its factorization.

142381828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2083 (or 2081 counting only the distinct ones).

The product of its digits is 24576, while the sum is 37.

The square root of 142381828 is about 11932.3856793183. The cubic root of 142381828 is about 522.1775402510.

The spelling of 142381828 in words is "one hundred forty-two million, three hundred eighty-one thousand, eight hundred twenty-eight".