144340399 has 8 divisors (see below), whose sum is σ = 165045888. Its totient is φ = 123656280.

The previous prime is 144340393. The next prime is 144340411. The reversal of 144340399 is 993043441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144340399 - 2⁹ = 144339887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144340393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13644 + ... + 21790.

It is an arithmetic number, because the mean of its divisors is an integer number (20630736).

Almost surely, 2^144340399 is an apocalyptic number.

144340399 is a deficient number, since it is larger than the sum of its proper divisors (20705489).

144340399 is an equidigital number, since it uses as much as digits as its factorization.

144340399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10685.

The product of its (nonzero) digits is 46656, while the sum is 37.

The square root of 144340399 is about 12014.1749196522. The cubic root of 144340399 is about 524.5609620518.

The spelling of 144340399 in words is "one hundred forty-four million, three hundred forty thousand, three hundred ninety-nine".