144428018 has 16 divisors (see below), whose sum is σ = 250984320. Its totient is φ = 61049376.

The previous prime is 144427999. The next prime is 144428029. The reversal of 144428018 is 810824441.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69638 + ... + 71681.

It is an arithmetic number, because the mean of its divisors is an integer number (15686520).

Almost surely, 2^144428018 is an apocalyptic number.

144428018 is a deficient number, since it is larger than the sum of its proper divisors (106556302).

144428018 is a wasteful number, since it uses less digits than its factorization.

144428018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141401.

The product of its (nonzero) digits is 8192, while the sum is 32.

The square root of 144428018 is about 12017.8208507200. The cubic root of 144428018 is about 524.6670820533.

The spelling of 144428018 in words is "one hundred forty-four million, four hundred twenty-eight thousand, eighteen".