40612344052 has 72 divisors (see below), whose sum is σ = 84279892200. Its totient is φ = 17069149440.

The previous prime is 40612344011. The next prime is 40612344083. The reversal of 40612344052 is 25044321604.

It can be written as a sum of positive squares in 4 ways, for example, as 6801960676 + 33810383376 = 82474^2 + 183876^2 .

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 4167778 + ... + 4177510.

Almost surely, 2^40612344052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40612344052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42139946100).

40612344052 is an abundant number, since it is smaller than the sum of its proper divisors (43667548148).

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

40612344052 is a wasteful number, since it uses less digits than its factorization.

40612344052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10161 (or 10152 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 40612344052 its reverse (25044321604), we get a palindrome (65656665656).

The spelling of 40612344052 in words is "forty billion, six hundred twelve million, three hundred forty-four thousand, fifty-two".