6670407040 has 64 divisors (see below), whose sum is σ = 17396136720. Its totient is φ = 2425600000.

The previous prime is 6670407017. The next prime is 6670407049. The reversal of 6670407040 is 407040766.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 6670406987 and 6670407005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6670407049) 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, 466711 + ... + 480790.

Almost surely, 2^6670407040 is an apocalyptic number.

It is an amenable number.

6670407040 is an abundant number, since it is smaller than the sum of its proper divisors (10725729680).

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

6670407040 is a wasteful number, since it uses less digits than its factorization.

6670407040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947531 (or 947519 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 6670407040 is about 81672.5598962099. The cubic root of 6670407040 is about 1882.4239745621.

The spelling of 6670407040 in words is "six billion, six hundred seventy million, four hundred seven thousand, forty".