142455344 has 20 divisors (see below), whose sum is σ = 277400400. Its totient is φ = 70868160.

The previous prime is 142455343. The next prime is 142455347. The reversal of 142455344 is 443554241.

It is a self number, because there is not a number n which added to its sum of digits gives 142455344.

It is not an unprimeable number, because it can be changed into a prime (142455343) 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 3 ways as a sum of consecutive naturals, for example, 19187 + ... + 25554.

It is an arithmetic number, because the mean of its divisors is an integer number (13870020).

Almost surely, 2^142455344 is an apocalyptic number.

It is an amenable number.

142455344 is a deficient number, since it is larger than the sum of its proper divisors (134945056).

142455344 is a wasteful number, since it uses less digits than its factorization.

142455344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44948 (or 44942 counting only the distinct ones).

The product of its digits is 38400, while the sum is 32.

The square root of 142455344 is about 11935.4658057405. The cubic root of 142455344 is about 522.2673967527.

The spelling of 142455344 in words is "one hundred forty-two million, four hundred fifty-five thousand, three hundred forty-four".