252305942 has 32 divisors (see below), whose sum is σ = 458872128. Its totient is φ = 101569536.

The previous prime is 252305941. The next prime is 252305951. The reversal of 252305942 is 249503252.

It is a junction number, because it is equal to n+sod(n) for n = 252305899 and 252305908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252305941) 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 15 ways as a sum of consecutive naturals, for example, 203348 + ... + 204584.

It is an arithmetic number, because the mean of its divisors is an integer number (14339754).

Almost surely, 2^252305942 is an apocalyptic number.

252305942 is a deficient number, since it is larger than the sum of its proper divisors (206566186).

252305942 is a wasteful number, since it uses less digits than its factorization.

252305942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2120.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 252305942 is about 15884.1412106541. The cubic root of 252305942 is about 631.8914701076.

The spelling of 252305942 in words is "two hundred fifty-two million, three hundred five thousand, nine hundred forty-two".