40242250143 has 20 divisors (see below), whose sum is σ = 60287257800. Its totient is φ = 26751276432.

The previous prime is 40242250123. The next prime is 40242250151. The reversal of 40242250143 is 34105224204.

40242250143 is a `hidden beast` number, since 402 + 4 + 2 + 250 + 1 + 4 + 3 = 666.

It is not a de Polignac number, because 40242250143 - 2⁹ = 40242249631 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40242250123) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 683505 + ... + 740042.

It is an arithmetic number, because the mean of its divisors is an integer number (3014362890).

Almost surely, 2^40242250143 is an apocalyptic number.

40242250143 is a deficient number, since it is larger than the sum of its proper divisors (20045007657).

40242250143 is a wasteful number, since it uses less digits than its factorization.

40242250143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423908 (or 1423899 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 40242250143 its reverse (34105224204), we get a palindrome (74347474347).

The spelling of 40242250143 in words is "forty billion, two hundred forty-two million, two hundred fifty thousand, one hundred forty-three".