6670040 has 64 divisors (see below), whose sum is σ = 16450560. Its totient is φ = 2419200.

The previous prime is 6670039. The next prime is 6670043. The reversal of 6670040 is 400766.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 6669988 and 6670015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6670043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52457 + ... + 52583.

It is an arithmetic number, because the mean of its divisors is an integer number (257040).

Almost surely, 2^6670040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6670040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8225280).

6670040 is an abundant number, since it is smaller than the sum of its proper divisors (9780520).

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

6670040 is a wasteful number, since it uses less digits than its factorization.

6670040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 248 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 6670040 is about 2582.6420580483. The cubic root of 6670040 is about 188.2389447055.

The spelling of 6670040 in words is "six million, six hundred seventy thousand, forty".