144390 has 16 divisors (see below), whose sum is σ = 346608. Its totient is φ = 38496.

The previous prime is 144383. The next prime is 144407. The reversal of 144390 is 93441.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 144390.

It is an unprimeable number.

144390 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2377 + ... + 2436.

It is an arithmetic number, because the mean of its divisors is an integer number (21663).

2¹⁴⁴³⁹⁰ is an apocalyptic number.

144390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144390 is an abundant number, since it is smaller than the sum of its proper divisors (202218).

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

144390 is a wasteful number, since it uses less digits than its factorization.

144390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4823.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 144390 is about 379.9868418775. The cubic root of 144390 is about 52.4621041717.

The spelling of 144390 in words is "one hundred forty-four thousand, three hundred ninety".