40670 has 24 divisors (see below), whose sum is σ = 86184. Its totient is φ = 13776.

The previous prime is 40639. The next prime is 40693. The reversal of 40670 is 7604.

It is a congruent number.

It is an unprimeable number.

40670 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 11 ways as a sum of consecutive naturals, for example, 449 + ... + 531.

It is an arithmetic number, because the mean of its divisors is an integer number (3591).

2⁴⁰⁶⁷⁰ is an apocalyptic number.

40670 is an abundant number, since it is smaller than the sum of its proper divisors (45514).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43092).

40670 is a wasteful number, since it uses less digits than its factorization.

40670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 97 counting only the distinct ones).

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

The square root of 40670 is about 201.6680440724. The cubic root of 40670 is about 34.3894099365.

The spelling of 40670 in words is "forty thousand, six hundred seventy".