40015312210 has 16 divisors (see below), whose sum is σ = 72740707992. Its totient is φ = 15847648000.

The previous prime is 40015312199. The next prime is 40015312297. The reversal of 40015312210 is 1221351004.

It can be written as a sum of positive squares in 4 ways, for example, as 38721974841 + 1293337369 = 196779^2 + 35963^2 .

It is a super-2 number, since 2×40015312210² (a number of 22 digits) contains 22 as substring.

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, 19808551 + ... + 19810570.

Almost surely, 2^40015312210 is an apocalyptic number.

40015312210 is a deficient number, since it is larger than the sum of its proper divisors (32725395782).

40015312210 is a wasteful number, since it uses less digits than its factorization.

40015312210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39619229.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 40015312210 its reverse (1221351004), we get a palindrome (41236663214).

The spelling of 40015312210 in words is "forty billion, fifteen million, three hundred twelve thousand, two hundred ten".