40143345343252 has 48 divisors (see below), whose sum is σ = 70695037987840. Its totient is φ = 19945082757600.

The previous prime is 40143345343183. The next prime is 40143345343267. The reversal of 40143345343252 is 25234354334104.

It is a super-2 number, since 2×40143345343252² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40143345343199 and 40143345343208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2006053927 + ... + 2006073937.

Almost surely, 2^{40143345343252} is an apocalyptic number.

It is an amenable number.

40143345343252 is a deficient number, since it is larger than the sum of its proper divisors (30551692644588).

40143345343252 is a wasteful number, since it uses less digits than its factorization.

40143345343252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23852 (or 23850 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 43.

Adding to 40143345343252 its reverse (25234354334104), we get a palindrome (65377699677356).

The spelling of 40143345343252 in words is "forty trillion, one hundred forty-three billion, three hundred forty-five million, three hundred forty-three thousand, two hundred fifty-two".