40120030442 has 8 divisors (see below), whose sum is σ = 60196965600. Its totient is φ = 20054375244.

The previous prime is 40120030441. The next prime is 40120030501. The reversal of 40120030442 is 24403002104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (40120030441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2811092 + ... + 2825327.

It is an arithmetic number, because the mean of its divisors is an integer number (7524620700).

Almost surely, 2^40120030442 is an apocalyptic number.

40120030442 is a deficient number, since it is larger than the sum of its proper divisors (20076935158).

40120030442 is a wasteful number, since it uses less digits than its factorization.

40120030442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5639980.

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 40120030442 its reverse (24403002104), we get a palindrome (64523032546).

The spelling of 40120030442 in words is "forty billion, one hundred twenty million, thirty thousand, four hundred forty-two".