667234242 has 12 divisors (see below), whose sum is σ = 1445674230. Its totient is φ = 222411408.

The previous prime is 667234223. The next prime is 667234273. The reversal of 667234242 is 242432766.

It can be written as a sum of positive squares in only one way, i.e., 601769961 + 65464281 = 24531^2 + 8091^2 .

It is a junction number, because it is equal to n+sod(n) for n = 667234197 and 667234206.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18534267 + ... + 18534302.

Almost surely, 2^667234242 is an apocalyptic number.

667234242 is an abundant number, since it is smaller than the sum of its proper divisors (778439988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

667234242 is a wasteful number, since it uses less digits than its factorization.

667234242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37068577 (or 37068574 counting only the distinct ones).

The product of its digits is 96768, while the sum is 36.

The square root of 667234242 is about 25830.8776854369. The cubic root of 667234242 is about 873.8283057771.

The spelling of 667234242 in words is "six hundred sixty-seven million, two hundred thirty-four thousand, two hundred forty-two".