40670205 has 16 divisors (see below), whose sum is σ = 68900544. Its totient is φ = 20414720.

The previous prime is 40670183. The next prime is 40670207. The reversal of 40670205 is 50207604.

It is a happy number.

It is not a de Polignac number, because 40670205 - 2⁵ = 40670173 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40670207) 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, 79491 + ... + 80000.

It is an arithmetic number, because the mean of its divisors is an integer number (4306284).

Almost surely, 2^40670205 is an apocalyptic number.

It is an amenable number.

40670205 is a deficient number, since it is larger than the sum of its proper divisors (28230339).

40670205 is a wasteful number, since it uses less digits than its factorization.

40670205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159516.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 40670205 is about 6377.3195780045. The cubic root of 40670205 is about 343.8946771715.

Adding to 40670205 its reverse (50207604), we get a palindrome (90877809).

The spelling of 40670205 in words is "forty million, six hundred seventy thousand, two hundred five".