657313042 has 8 divisors (see below), whose sum is σ = 986155632. Its totient is φ = 328594500.

The previous prime is 657313039. The next prime is 657313061. The reversal of 657313042 is 240313756.

657313042 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 = 657312995 and 657313013.

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, 16384 + ... + 39787.

It is an arithmetic number, because the mean of its divisors is an integer number (123269454).

Almost surely, 2^657313042 is an apocalyptic number.

657313042 is a deficient number, since it is larger than the sum of its proper divisors (328842590).

657313042 is a wasteful number, since it uses less digits than its factorization.

657313042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62024.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 657313042 is about 25638.1169745362. The cubic root of 657313042 is about 869.4756350474.

Adding to 657313042 its reverse (240313756), we get a palindrome (897626798).

The spelling of 657313042 in words is "six hundred fifty-seven million, three hundred thirteen thousand, forty-two".