244140012 has 18 divisors (see below), whose sum is σ = 617131788. Its totient is φ = 81379992.

The previous prime is 244139999. The next prime is 244140019. The reversal of 244140012 is 210041442.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (244140019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3390798 + ... + 3390869.

Almost surely, 2^244140012 is an apocalyptic number.

It is an amenable number.

244140012 is an abundant number, since it is smaller than the sum of its proper divisors (372991776).

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

244140012 is a wasteful number, since it uses less digits than its factorization.

244140012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6781677 (or 6781672 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 244140012 is about 15624.9803839877. The cubic root of 244140012 is about 624.9994769062. Note that the first 3 decimals are identical.

Adding to 244140012 its reverse (210041442), we get a palindrome (454181454).

The spelling of 244140012 in words is "two hundred forty-four million, one hundred forty thousand, twelve".