40231203220 has 48 divisors (see below), whose sum is σ = 91076258448. Its totient is φ = 14839603200.

The previous prime is 40231203203. The next prime is 40231203241. The reversal of 40231203220 is 2230213204.

It can be written as a sum of positive squares in 8 ways, for example, as 1612664964 + 38618538256 = 40158^2 + 196516^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181620 + ... + 336820.

It is an arithmetic number, because the mean of its divisors is an integer number (1897422051).

Almost surely, 2^40231203220 is an apocalyptic number.

It is an amenable number.

40231203220 is an abundant number, since it is smaller than the sum of its proper divisors (50845055228).

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

40231203220 is a wasteful number, since it uses less digits than its factorization.

40231203220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156220 (or 156218 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 40231203220 its reverse (2230213204), we get a palindrome (42461416424).

The spelling of 40231203220 in words is "forty billion, two hundred thirty-one million, two hundred three thousand, two hundred twenty".