144447672 has 32 divisors (see below), whose sum is σ = 364438800. Its totient is φ = 47706624.

The previous prime is 144447661. The next prime is 144447683. The reversal of 144447672 is 276744441.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (144447661) and next prime (144447683).

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 144447672.

It is a congruent number.

It is an unprimeable number.

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, 24993 + ... + 30224.

Almost surely, 2^144447672 is an apocalyptic number.

144447672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

144447672 is an abundant number, since it is smaller than the sum of its proper divisors (219991128).

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

144447672 is a wasteful number, since it uses less digits than its factorization.

144447672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55335 (or 55331 counting only the distinct ones).

The product of its digits is 150528, while the sum is 39.

The square root of 144447672 is about 12018.6385252241. The cubic root of 144447672 is about 524.6908801576.

The spelling of 144447672 in words is "one hundred forty-four million, four hundred forty-seven thousand, six hundred seventy-two".