40240210205 has 8 divisors (see below), whose sum is σ = 52002733272. Its totient is φ = 29715847488.

The previous prime is 40240210193. The next prime is 40240210237. The reversal of 40240210205 is 50201204204.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 421604089 + 39818606116 = 20533^2 + 199546^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40240210205 - 2⁸ = 40240209949 is a prime.

It is a super-2 number, since 2×40240210205² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309540014 + ... + 309540143.

It is an arithmetic number, because the mean of its divisors is an integer number (6500341659).

Almost surely, 2^40240210205 is an apocalyptic number.

It is an amenable number.

40240210205 is a deficient number, since it is larger than the sum of its proper divisors (11762523067).

40240210205 is a wasteful number, since it uses less digits than its factorization.

40240210205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619080175.

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 40240210205 its reverse (50201204204), we get a palindrome (90441414409).

The spelling of 40240210205 in words is "forty billion, two hundred forty million, two hundred ten thousand, two hundred five".