144644836 has 12 divisors (see below), whose sum is σ = 289289728. Its totient is φ = 61990632.

The previous prime is 144644833. The next prime is 144644849. The reversal of 144644836 is 638446441.

144644836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

144644836 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (144644831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2582916 + ... + 2582971.

Almost surely, 2^144644836 is an apocalyptic number.

It is an amenable number.

144644836 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

144644836 is a wasteful number, since it uses less digits than its factorization.

144644836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5165898 (or 5165896 counting only the distinct ones).

The product of its digits is 221184, while the sum is 40.

The square root of 144644836 is about 12026.8381547271. The cubic root of 144644836 is about 524.9294974109.

The spelling of 144644836 in words is "one hundred forty-four million, six hundred forty-four thousand, eight hundred thirty-six".