252730042 has 8 divisors (see below), whose sum is σ = 391324032. Its totient is φ = 122288700.

The previous prime is 252730019. The next prime is 252730057. The reversal of 252730042 is 240037252.

252730042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 252729989 and 252730016.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2038084 + ... + 2038207.

It is an arithmetic number, because the mean of its divisors is an integer number (48915504).

Almost surely, 2^252730042 is an apocalyptic number.

252730042 is a deficient number, since it is larger than the sum of its proper divisors (138593990).

252730042 is a wasteful number, since it uses less digits than its factorization.

252730042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4076324.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 252730042 is about 15897.4853986409. The cubic root of 252730042 is about 632.2453198276.

Adding to 252730042 its reverse (240037252), we get a palindrome (492767294).

The spelling of 252730042 in words is "two hundred fifty-two million, seven hundred thirty thousand, forty-two".