144024394 has 8 divisors (see below), whose sum is σ = 216098820. Its totient is φ = 71991456.

The previous prime is 144024371. The next prime is 144024409. The reversal of 144024394 is 493420441.

It can be written as a sum of positive squares in 2 ways, for example, as 109977169 + 34047225 = 10487^2 + 5835^2 .

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

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, 652 + ... + 16984.

Almost surely, 2^144024394 is an apocalyptic number.

144024394 is a deficient number, since it is larger than the sum of its proper divisors (72074426).

144024394 is a wasteful number, since it uses less digits than its factorization.

144024394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20744.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 144024394 is about 12001.0163736244. The cubic root of 144024394 is about 524.1778745621.

The spelling of 144024394 in words is "one hundred forty-four million, twenty-four thousand, three hundred ninety-four".