240312530 has 32 divisors (see below), whose sum is σ = 437486400. Its totient is φ = 95038272.

The previous prime is 240312511. The next prime is 240312577. The reversal of 240312530 is 35213042.

It is a happy number.

240312530 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×240312530² = 115500224150001800, which contains 22 as substring.

It is an unprimeable number.

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, 617576 + ... + 617964.

It is an arithmetic number, because the mean of its divisors is an integer number (13671450).

Almost surely, 2^240312530 is an apocalyptic number.

240312530 is a deficient number, since it is larger than the sum of its proper divisors (197173870).

240312530 is a wasteful number, since it uses less digits than its factorization.

240312530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 240312530 is about 15502.0169655435. The cubic root of 240312530 is about 621.7161351223.

Adding to 240312530 its reverse (35213042), we get a palindrome (275525572).

The spelling of 240312530 in words is "two hundred forty million, three hundred twelve thousand, five hundred thirty".