144340400 has 30 divisors (see below), whose sum is σ = 346778772. Its totient is φ = 57736000.

The previous prime is 144340393. The next prime is 144340411. The reversal of 144340400 is 4043441.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 180026 + ... + 180825.

Almost surely, 2^144340400 is an apocalyptic number.

144340400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144340400 is an abundant number, since it is smaller than the sum of its proper divisors (202438372).

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

144340400 is a wasteful number, since it uses less digits than its factorization.

144340400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360869 (or 360858 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 144340400 is about 12014.1749612697. The cubic root of 144340400 is about 524.5609632632.

Adding to 144340400 its reverse (4043441), we get a palindrome (148383841).

The spelling of 144340400 in words is "one hundred forty-four million, three hundred forty thousand, four hundred".