144520344 has 24 divisors (see below), whose sum is σ = 391409460. Its totient is φ = 48173424.

The previous prime is 144520331. The next prime is 144520351. The reversal of 144520344 is 443025441.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×144520344² = 41772259659756672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1003542 + ... + 1003685.

Almost surely, 2^144520344 is an apocalyptic number.

It is an amenable number.

144520344 is an abundant number, since it is smaller than the sum of its proper divisors (246889116).

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

144520344 is a wasteful number, since it uses less digits than its factorization.

144520344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2007239 (or 2007232 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 144520344 is about 12021.6614492340. The cubic root of 144520344 is about 524.7788565216.

Adding to 144520344 its reverse (443025441), we get a palindrome (587545785).

The spelling of 144520344 in words is "one hundred forty-four million, five hundred twenty thousand, three hundred forty-four".