142394944 has 28 divisors (see below), whose sum is σ = 290206684. Its totient is φ = 69272064.

The previous prime is 142394939. The next prime is 142394957. The reversal of 142394944 is 449493241.

142394944 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 97772544 + 44622400 = 9888^2 + 6680^2 .

It is a junction number, because it is equal to n+sod(n) for n = 142394897 and 142394906.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 27699 + ... + 32434.

Almost surely, 2^142394944 is an apocalyptic number.

It is an amenable number.

142394944 is an abundant number, since it is smaller than the sum of its proper divisors (147811740).

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

142394944 is an equidigital number, since it uses as much as digits as its factorization.

142394944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60182 (or 60172 counting only the distinct ones).

The product of its digits is 124416, while the sum is 40.

The square root of 142394944 is about 11932.9352633792. The cubic root of 142394944 is about 522.1935738287.

The spelling of 142394944 in words is "one hundred forty-two million, three hundred ninety-four thousand, nine hundred forty-four".