657373942 has 8 divisors (see below), whose sum is σ = 1002226032. Its totient is φ = 323298600.

The previous prime is 657373939. The next prime is 657373949. The reversal of 657373942 is 249373756.

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 = 657373892 and 657373901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (657373949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2694034 + ... + 2694277.

It is an arithmetic number, because the mean of its divisors is an integer number (125278254).

Almost surely, 2^657373942 is an apocalyptic number.

657373942 is a deficient number, since it is larger than the sum of its proper divisors (344852090).

657373942 is a wasteful number, since it uses less digits than its factorization.

657373942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5388374.

The product of its digits is 952560, while the sum is 46.

The square root of 657373942 is about 25639.3046317563. The cubic root of 657373942 is about 869.5024865005.

The spelling of 657373942 in words is "six hundred fifty-seven million, three hundred seventy-three thousand, nine hundred forty-two".