144440618 has 8 divisors (see below), whose sum is σ = 247612512. Its totient is φ = 61903116.

The previous prime is 144440617. The next prime is 144440623. The reversal of 144440618 is 816044441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (144440617) 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, 5158580 + ... + 5158607.

It is an arithmetic number, because the mean of its divisors is an integer number (30951564).

Almost surely, 2^144440618 is an apocalyptic number.

144440618 is a deficient number, since it is larger than the sum of its proper divisors (103171894).

144440618 is a wasteful number, since it uses less digits than its factorization.

144440618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10317196.

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 144440618 is about 12018.3450607810. The cubic root of 144440618 is about 524.6823390491.

The spelling of 144440618 in words is "one hundred forty-four million, four hundred forty thousand, six hundred eighteen".