144427184 has 20 divisors (see below), whose sum is σ = 305266920. Its totient is φ = 65648640.

The previous prime is 144427183. The next prime is 144427187. The reversal of 144427184 is 481724441.

It is a super-2 number, since 2×144427184² = 41718422956339712, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (144427183) 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, 410129 + ... + 410480.

It is an arithmetic number, because the mean of its divisors is an integer number (15263346).

Almost surely, 2^144427184 is an apocalyptic number.

It is an amenable number.

144427184 is an abundant number, since it is smaller than the sum of its proper divisors (160839736).

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

144427184 is a wasteful number, since it uses less digits than its factorization.

144427184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820628 (or 820622 counting only the distinct ones).

The product of its digits is 28672, while the sum is 35.

The square root of 144427184 is about 12017.7861521996. The cubic root of 144427184 is about 524.6660721541. Note that the first 3 decimals are identical.

The spelling of 144427184 in words is "one hundred forty-four million, four hundred twenty-seven thousand, one hundred eighty-four".