670040 has 32 divisors (see below), whose sum is σ = 1723680. Its totient is φ = 229632.

The previous prime is 670039. The next prime is 670049. The reversal of 670040 is 40076.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670049) 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, 917 + ... + 1476.

It is an arithmetic number, because the mean of its divisors is an integer number (53865).

2⁶⁷⁰⁰⁴⁰ is an apocalyptic number.

It is an amenable number.

670040 is an abundant number, since it is smaller than the sum of its proper divisors (1053640).

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

670040 is a wasteful number, since it uses less digits than its factorization.

670040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2411 (or 2407 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 670040 is about 818.5597107114. The cubic root of 670040 is about 87.5051425549.

The spelling of 670040 in words is "six hundred seventy thousand, forty".