42404340044 has 48 divisors (see below), whose sum is σ = 81656467200. Its totient is φ = 19107912000.

The previous prime is 42404340019. The next prime is 42404340071. The reversal of 42404340044 is 44004340424.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42404339989 and 42404340016.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3375527 + ... + 3388065.

It is an arithmetic number, because the mean of its divisors is an integer number (1701176400).

Almost surely, 2^42404340044 is an apocalyptic number.

42404340044 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42404340044 is a deficient number, since it is larger than the sum of its proper divisors (39252127156).

42404340044 is a wasteful number, since it uses less digits than its factorization.

42404340044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13214 (or 13212 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 29.

Adding to 42404340044 its reverse (44004340424), we get a palindrome (86408680468).

The spelling of 42404340044 in words is "forty-two billion, four hundred four million, three hundred forty thousand, forty-four".