40143235436 has 48 divisors (see below), whose sum is σ = 71710334976. Its totient is φ = 19659677184.

The previous prime is 40143235427. The next prime is 40143235463. The reversal of 40143235436 is 63453234104.

It is a super-2 number, since 2×40143235436² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40143235396 and 40143235405.

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 15 ways as a sum of consecutive naturals, for example, 27741665 + ... + 27743111.

It is an arithmetic number, because the mean of its divisors is an integer number (1493965312).

Almost surely, 2^40143235436 is an apocalyptic number.

It is an amenable number.

40143235436 is a deficient number, since it is larger than the sum of its proper divisors (31567099540).

40143235436 is a wasteful number, since it uses less digits than its factorization.

40143235436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2238 (or 2236 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 35.

The spelling of 40143235436 in words is "forty billion, one hundred forty-three million, two hundred thirty-five thousand, four hundred thirty-six".