667732052 has 48 divisors (see below), whose sum is σ = 1335559680. Its totient is φ = 289377792.

The previous prime is 667732049. The next prime is 667732063. The reversal of 667732052 is 250237766.

It is a junction number, because it is equal to n+sod(n) for n = 667731997 and 667732015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 642149 + ... + 643187.

It is an arithmetic number, because the mean of its divisors is an integer number (27824160).

Almost surely, 2^667732052 is an apocalyptic number.

It is an amenable number.

667732052 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

667732052 is a wasteful number, since it uses less digits than its factorization.

667732052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800 (or 1798 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 667732052 is about 25840.5118370360. The cubic root of 667732052 is about 874.0455669750.

The spelling of 667732052 in words is "six hundred sixty-seven million, seven hundred thirty-two thousand, fifty-two".