6673667440 has 40 divisors (see below), whose sum is σ = 16926849648. Its totient is φ = 2426787840.

The previous prime is 6673667431. The next prime is 6673667449. The reversal of 6673667440 is 447663766.

It is an interprime number because it is at equal distance from previous prime (6673667431) and next prime (6673667449).

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6673667449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3790977 + ... + 3792736.

Almost surely, 2^6673667440 is an apocalyptic number.

It is an amenable number.

6673667440 is an abundant number, since it is smaller than the sum of its proper divisors (10253182208).

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

6673667440 is a wasteful number, since it uses less digits than its factorization.

6673667440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7583737 (or 7583731 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 49.

The square root of 6673667440 is about 81692.5176500272. The cubic root of 6673667440 is about 1882.7306252854.

The spelling of 6673667440 in words is "six billion, six hundred seventy-three million, six hundred sixty-seven thousand, four hundred forty".