144434320 has 40 divisors (see below), whose sum is σ = 336641400. Its totient is φ = 57630720.

The previous prime is 144434317. The next prime is 144434341. The reversal of 144434320 is 23434441.

It can be written as a sum of positive squares in 4 ways, for example, as 1679616 + 142754704 = 1296^2 + 11948^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×144434320² = 41722545587724800, which contains 22 as substring.

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, 33910 + ... + 37930.

It is an arithmetic number, because the mean of its divisors is an integer number (8416035).

Almost surely, 2^144434320 is an apocalyptic number.

144434320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144434320 is an abundant number, since it is smaller than the sum of its proper divisors (192207080).

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

144434320 is a wasteful number, since it uses less digits than its factorization.

144434320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4483 (or 4477 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 144434320 is about 12018.0830418166. The cubic root of 144434320 is about 524.6747130838.

Adding to 144434320 its reverse (23434441), we get a palindrome (167868761).

The spelling of 144434320 in words is "one hundred forty-four million, four hundred thirty-four thousand, three hundred twenty".