667030040 has 16 divisors (see below), whose sum is σ = 1500817680. Its totient is φ = 266812000.

The previous prime is 667030033. The next prime is 667030051. The reversal of 667030040 is 40030766.

It is a junction number, because it is equal to n+sod(n) for n = 667029991 and 667030009.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8337836 + ... + 8337915.

It is an arithmetic number, because the mean of its divisors is an integer number (93801105).

Almost surely, 2^667030040 is an apocalyptic number.

It is an amenable number.

667030040 is an abundant number, since it is smaller than the sum of its proper divisors (833787640).

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

667030040 is a wasteful number, since it uses less digits than its factorization.

667030040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16675762 (or 16675758 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 667030040 is about 25826.9247104645. The cubic root of 667030040 is about 873.7391538308.

The spelling of 667030040 in words is "six hundred sixty-seven million, thirty thousand, forty".