40023144034242 has 16 divisors (see below), whose sum is σ = 81907829652000. Its totient is φ = 13030791080832.

The previous prime is 40023144034231. The next prime is 40023144034249. The reversal of 40023144034242 is 24243044132004.

It is a super-3 number, since 3×40023144034242³ (a number of 42 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (40023144034249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77564232367 + ... + 77564232882.

It is an arithmetic number, because the mean of its divisors is an integer number (5119239353250).

Almost surely, 2^{40023144034242} is an apocalyptic number.

40023144034242 is an abundant number, since it is smaller than the sum of its proper divisors (41884685617758).

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

40023144034242 is a wasteful number, since it uses less digits than its factorization.

40023144034242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155128465297.

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 40023144034242 its reverse (24243044132004), we get a palindrome (64266188166246).

The spelling of 40023144034242 in words is "forty trillion, twenty-three billion, one hundred forty-four million, thirty-four thousand, two hundred forty-two".