144198394 has 16 divisors (see below), whose sum is σ = 222152616. Its totient is φ = 70156800.

The previous prime is 144198371. The next prime is 144198401. The reversal of 144198394 is 493891441.

It can be written as a sum of positive squares in 4 ways, for example, as 72880369 + 71318025 = 8537^2 + 8445^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 144198394.

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 7 ways as a sum of consecutive naturals, for example, 32434 + ... + 36610.

Almost surely, 2^144198394 is an apocalyptic number.

144198394 is a deficient number, since it is larger than the sum of its proper divisors (77954222).

144198394 is a wasteful number, since it uses less digits than its factorization.

144198394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4641.

The product of its digits is 124416, while the sum is 43.

The square root of 144198394 is about 12008.2635713912. The cubic root of 144198394 is about 524.3888810506.

The spelling of 144198394 in words is "one hundred forty-four million, one hundred ninety-eight thousand, three hundred ninety-four".