40143221400232 has 192 divisors, whose sum is σ = 85225231728000. Its totient is φ = 17643659894784.

The previous prime is 40143221400199. The next prime is 40143221400263. The reversal of 40143221400232 is 23200412234104.

It is a super-2 number, since 2×40143221400232² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40143221400232.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1612877644 + ... + 1612902532.

It is an arithmetic number, because the mean of its divisors is an integer number (443881415250).

Almost surely, 2^{40143221400232} is an apocalyptic number.

It is an amenable number.

40143221400232 is an abundant number, since it is smaller than the sum of its proper divisors (45082010327768).

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

40143221400232 is a wasteful number, since it uses less digits than its factorization.

40143221400232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25348 (or 25307 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 40143221400232 its reverse (23200412234104), we get a palindrome (63343633634336).

The spelling of 40143221400232 in words is "forty trillion, one hundred forty-three billion, two hundred twenty-one million, four hundred thousand, two hundred thirty-two".