40135223340 has 144 divisors (see below), whose sum is σ = 123973694208. Its totient is φ = 10508009472.

The previous prime is 40135223339. The next prime is 40135223407. The reversal of 40135223340 is 4332253104.

40135223340 is a `hidden beast` number, since 40 + 1 + 352 + 233 + 40 = 666.

It is a super-2 number, since 2×40135223340² (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 47 ways as a sum of consecutive naturals, for example, 2923372 + ... + 2937068.

It is an arithmetic number, because the mean of its divisors is an integer number (860928432).

Almost surely, 2^40135223340 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 40135223340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61986847104).

40135223340 is an abundant number, since it is smaller than the sum of its proper divisors (83838470868).

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

40135223340 is a wasteful number, since it uses less digits than its factorization.

40135223340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14008 (or 14003 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 40135223340 its reverse (4332253104), we get a palindrome (44467476444).

The spelling of 40135223340 in words is "forty billion, one hundred thirty-five million, two hundred twenty-three thousand, three hundred forty".