142427724 has 24 divisors (see below), whose sum is σ = 349823040. Its totient is φ = 44977104.

The previous prime is 142427723. The next prime is 142427749. The reversal of 142427724 is 427724241.

It is not an unprimeable number, because it can be changed into a prime (142427723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312114 + ... + 312569.

It is an arithmetic number, because the mean of its divisors is an integer number (14575960).

Almost surely, 2^142427724 is an apocalyptic number.

It is an amenable number.

142427724 is an abundant number, since it is smaller than the sum of its proper divisors (207395316).

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

142427724 is a wasteful number, since it uses less digits than its factorization.

142427724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624709 (or 624707 counting only the distinct ones).

The product of its digits is 25088, while the sum is 33.

The square root of 142427724 is about 11934.3086938457. The cubic root of 142427724 is about 522.2336412439.

The spelling of 142427724 in words is "one hundred forty-two million, four hundred twenty-seven thousand, seven hundred twenty-four".