40442134430 has 16 divisors (see below), whose sum is σ = 72909066384. Its totient is φ = 16151692800.

The previous prime is 40442134423. The next prime is 40442134477. The reversal of 40442134430 is 3443124404.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 40442134393 and 40442134402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3138371 + ... + 3151230.

It is an arithmetic number, because the mean of its divisors is an integer number (4556816649).

Almost surely, 2^40442134430 is an apocalyptic number.

40442134430 is a deficient number, since it is larger than the sum of its proper divisors (32466931954).

40442134430 is a wasteful number, since it uses less digits than its factorization.

40442134430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6290251.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 40442134430 its reverse (3443124404), we get a palindrome (43885258834).

The spelling of 40442134430 in words is "forty billion, four hundred forty-two million, one hundred thirty-four thousand, four hundred thirty".