40135205352 has 96 divisors (see below), whose sum is σ = 110609503200. Its totient is φ = 12126829440.

The previous prime is 40135205347. The next prime is 40135205377. The reversal of 40135205352 is 25350253104.

It is a super-2 number, since 2×40135205352² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 987774 + ... + 1027602.

It is an arithmetic number, because the mean of its divisors is an integer number (1152182325).

Almost surely, 2^40135205352 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 40135205352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55304751600).

40135205352 is an abundant number, since it is smaller than the sum of its proper divisors (70474297848).

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

40135205352 is a wasteful number, since it uses less digits than its factorization.

40135205352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40207 (or 40192 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 40135205352 its reverse (25350253104), we get a palindrome (65485458456).

The spelling of 40135205352 in words is "forty billion, one hundred thirty-five million, two hundred five thousand, three hundred fifty-two".