667424938 has 16 divisors (see below), whose sum is σ = 1009288800. Its totient is φ = 331002000.

The previous prime is 667424929. The next prime is 667424941. The reversal of 667424938 is 839424766.

It is a junction number, because it is equal to n+sod(n) for n = 667424891 and 667424900.

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 7 ways as a sum of consecutive naturals, for example, 312133 + ... + 314263.

It is an arithmetic number, because the mean of its divisors is an integer number (63080550).

Almost surely, 2^667424938 is an apocalyptic number.

667424938 is a deficient number, since it is larger than the sum of its proper divisors (341863862).

667424938 is a wasteful number, since it uses less digits than its factorization.

667424938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3333.

The product of its digits is 1741824, while the sum is 49.

The square root of 667424938 is about 25834.5686629369. The cubic root of 667424938 is about 873.9115447556.

The spelling of 667424938 in words is "six hundred sixty-seven million, four hundred twenty-four thousand, nine hundred thirty-eight".