144238394 has 8 divisors (see below), whose sum is σ = 220961088. Its totient is φ = 70584700.

The previous prime is 144238351. The next prime is 144238411. The reversal of 144238394 is 493832441.

144238394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 767132 + ... + 767319.

It is an arithmetic number, because the mean of its divisors is an integer number (27620136).

Almost surely, 2^144238394 is an apocalyptic number.

144238394 is a deficient number, since it is larger than the sum of its proper divisors (76722694).

144238394 is a wasteful number, since it uses less digits than its factorization.

144238394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1534500.

The product of its digits is 82944, while the sum is 38.

The square root of 144238394 is about 12009.9289756434. The cubic root of 144238394 is about 524.4373642906.

The spelling of 144238394 in words is "one hundred forty-four million, two hundred thirty-eight thousand, three hundred ninety-four".