440412342 has 16 divisors (see below), whose sum is σ = 884673840. Its totient is φ = 146162592.

The previous prime is 440412341. The next prime is 440412377. The reversal of 440412342 is 243214044.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440412341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158893 + ... + 161640.

It is an arithmetic number, because the mean of its divisors is an integer number (55292115).

Almost surely, 2^440412342 is an apocalyptic number.

440412342 is an abundant number, since it is smaller than the sum of its proper divisors (444261498).

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

440412342 is a wasteful number, since it uses less digits than its factorization.

440412342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320767.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 440412342 is about 20986.0034785092. The cubic root of 440412342 is about 760.8280114598.

Adding to 440412342 its reverse (243214044), we get a palindrome (683626386).

The spelling of 440412342 in words is "four hundred forty million, four hundred twelve thousand, three hundred forty-two".