144345330 has 24 divisors (see below), whose sum is σ = 375298092. Its totient is φ = 38492064.

The previous prime is 144345307. The next prime is 144345347. The reversal of 144345330 is 33543441.

It can be written as a sum of positive squares in 2 ways, for example, as 142348761 + 1996569 = 11931^2 + 1413^2 .

It is a super-4 number, since 4×144345330⁴ (a number of 34 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144345294 and 144345303.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 801829 + ... + 802008.

Almost surely, 2^144345330 is an apocalyptic number.

144345330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144345330 is an abundant number, since it is smaller than the sum of its proper divisors (230952762).

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

144345330 is a wasteful number, since it uses less digits than its factorization.

144345330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603850 (or 1603847 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 144345330 is about 12014.3801338230. The cubic root of 144345330 is about 524.5669353867.

Adding to 144345330 its reverse (33543441), we get a palindrome (177888771).

The spelling of 144345330 in words is "one hundred forty-four million, three hundred forty-five thousand, three hundred thirty".