40041342542 has 4 divisors (see below), whose sum is σ = 60062013816. Its totient is φ = 20020671270.

The previous prime is 40041342499. The next prime is 40041342563. The reversal of 40041342542 is 24524314004.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×40041342542² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 10010335634 + ... + 10010335637.

It is an arithmetic number, because the mean of its divisors is an integer number (15015503454).

Almost surely, 2^40041342542 is an apocalyptic number.

40041342542 is a deficient number, since it is larger than the sum of its proper divisors (20020671274).

40041342542 is a wasteful number, since it uses less digits than its factorization.

40041342542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20020671273.

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 40041342542 its reverse (24524314004), we get a palindrome (64565656546).

The spelling of 40041342542 in words is "forty billion, forty-one million, three hundred forty-two thousand, five hundred forty-two".