40442400426 has 16 divisors (see below), whose sum is σ = 82255730400. Its totient is φ = 13252311888.

The previous prime is 40442400421. The next prime is 40442400511. The reversal of 40442400426 is 62400424404.

It is a junction number, because it is equal to n+sod(n) for n = 40442400393 and 40442400402.

It is not an unprimeable number, because it can be changed into a prime (40442400421) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 57121681 + ... + 57122388.

It is an arithmetic number, because the mean of its divisors is an integer number (5140983150).

Almost surely, 2^40442400426 is an apocalyptic number.

40442400426 is an abundant number, since it is smaller than the sum of its proper divisors (41813329974).

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

40442400426 is a wasteful number, since it uses less digits than its factorization.

40442400426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114244133.

The product of its (nonzero) digits is 24576, while the sum is 30.

The spelling of 40442400426 in words is "forty billion, four hundred forty-two million, four hundred thousand, four hundred twenty-six".