40442444442440 has 64 divisors (see below), whose sum is σ = 92714709499200. Its totient is φ = 15871355764992.

The previous prime is 40442444442427. The next prime is 40442444442451. The reversal of 40442444442440 is 4424444424404.

It is a junction number, because it is equal to n+sod(n) for n = 40442444442391 and 40442444442400.

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, 93443579 + ... + 93875381.

It is an arithmetic number, because the mean of its divisors is an integer number (1448667335925).

Almost surely, 2^{40442444442440} is an apocalyptic number.

40442444442440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40442444442440 is an abundant number, since it is smaller than the sum of its proper divisors (52272265056760).

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

40442444442440 is a wasteful number, since it uses less digits than its factorization.

40442444442440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476046 (or 476042 counting only the distinct ones).

The product of its (nonzero) digits is 4194304, while the sum is 44.

Adding to 40442444442440 its reverse (4424444424404), we get a palindrome (44866888866844).

The spelling of 40442444442440 in words is "forty trillion, four hundred forty-two billion, four hundred forty-four million, four hundred forty-two thousand, four hundred forty".