40013315242 has 12 divisors (see below), whose sum is σ = 63758241990. Its totient is φ = 18829795136.

The previous prime is 40013315233. The next prime is 40013315249. The reversal of 40013315242 is 24251331004.

It can be written as a sum of positive squares in 3 ways, for example, as 36599133481 + 3414181761 = 191309^2 + 58431^2 .

It is not an unprimeable number, because it can be changed into a prime (40013315249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34613017 + ... + 34614172.

Almost surely, 2^40013315242 is an apocalyptic number.

40013315242 is a deficient number, since it is larger than the sum of its proper divisors (23744926748).

40013315242 is a wasteful number, since it uses less digits than its factorization.

40013315242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69227225 (or 69227208 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 40013315242 its reverse (24251331004), we get a palindrome (64264646246).

The spelling of 40013315242 in words is "forty billion, thirteen million, three hundred fifteen thousand, two hundred forty-two".