40020230205 has 24 divisors (see below), whose sum is σ = 69392088792. Its totient is φ = 21336833664.

The previous prime is 40020230183. The next prime is 40020230249. The reversal of 40020230205 is 50203202004.

It can be written as a sum of positive squares in 4 ways, for example, as 337199769 + 39683030436 = 18363^2 + 199206^2 .

It is not a de Polignac number, because 40020230205 - 2²² = 40016035901 is a prime.

It is a super-2 number, since 2×40020230205² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17314 + ... + 283443.

It is an arithmetic number, because the mean of its divisors is an integer number (2891337033).

Almost surely, 2^40020230205 is an apocalyptic number.

40020230205 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40020230205 is a deficient number, since it is larger than the sum of its proper divisors (29371858587).

40020230205 is a wasteful number, since it uses less digits than its factorization.

40020230205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303725 (or 303722 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

Adding to 40020230205 its reverse (50203202004), we get a palindrome (90223432209).

The spelling of 40020230205 in words is "forty billion, twenty million, two hundred thirty thousand, two hundred five".