144397418 has 8 divisors (see below), whose sum is σ = 236286720. Its totient is φ = 65635180.

The previous prime is 144397403. The next prime is 144397441. The reversal of 144397418 is 814793441.

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

It is a super-2 number, since 2×144397418² = 41701228650133448, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 3281738 + ... + 3281781.

It is an arithmetic number, because the mean of its divisors is an integer number (29535840).

Almost surely, 2^144397418 is an apocalyptic number.

144397418 is a deficient number, since it is larger than the sum of its proper divisors (91889302).

144397418 is a wasteful number, since it uses less digits than its factorization.

144397418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6563532.

The product of its digits is 96768, while the sum is 41.

The square root of 144397418 is about 12016.5476739370. The cubic root of 144397418 is about 524.6300256545.

The spelling of 144397418 in words is "one hundred forty-four million, three hundred ninety-seven thousand, four hundred eighteen".