40424346542 has 4 divisors (see below), whose sum is σ = 60636519816. Its totient is φ = 20212173270.

The previous prime is 40424346541. The next prime is 40424346581. The reversal of 40424346542 is 24564342404.

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

It is a junction number, because it is equal to n+sod(n) for n = 40424346496 and 40424346505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40424346541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106086634 + ... + 10106086637.

It is an arithmetic number, because the mean of its divisors is an integer number (15159129954).

Almost surely, 2^40424346542 is an apocalyptic number.

40424346542 is a deficient number, since it is larger than the sum of its proper divisors (20212173274).

40424346542 is a wasteful number, since it uses less digits than its factorization.

40424346542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20212173273.

The product of its (nonzero) digits is 368640, while the sum is 38.

Adding to 40424346542 its reverse (24564342404), we get a palindrome (64988688946).

The spelling of 40424346542 in words is "forty billion, four hundred twenty-four million, three hundred forty-six thousand, five hundred forty-two".