40210205 has 16 divisors (see below), whose sum is σ = 55292160. Its totient is φ = 27499392.

The previous prime is 40210169. The next prime is 40210207. The reversal of 40210205 is 50201204.

It is a cyclic number.

It is not a de Polignac number, because 40210205 - 2¹⁰ = 40209181 is a prime.

It is a super-2 number, since 2×40210205² = 3233721172284050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40210205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40210207) 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, 14057 + ... + 16673.

It is an arithmetic number, because the mean of its divisors is an integer number (3455760).

Almost surely, 2^40210205 is an apocalyptic number.

It is an amenable number.

40210205 is a deficient number, since it is larger than the sum of its proper divisors (15081955).

40210205 is a wasteful number, since it uses less digits than its factorization.

40210205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3068.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 40210205 is about 6341.1517092717. The cubic root of 40210205 is about 342.5932188054.

Adding to 40210205 its reverse (50201204), we get a palindrome (90411409).

Subtracting 40210205 from its reverse (50201204), we obtain a palindrome (9990999).

The spelling of 40210205 in words is "forty million, two hundred ten thousand, two hundred five".