6144394 has 4 divisors (see below), whose sum is σ = 9216594. Its totient is φ = 3072196.

The previous prime is 6144389. The next prime is 6144403. The reversal of 6144394 is 4934416.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 6125625 + 18769 = 2475^2 + 137^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1536097 + ... + 1536100.

Almost surely, 2^6144394 is an apocalyptic number.

6144394 is a deficient number, since it is larger than the sum of its proper divisors (3072200).

6144394 is a wasteful number, since it uses less digits than its factorization.

6144394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3072199.

The product of its digits is 10368, while the sum is 31.

The square root of 6144394 is about 2478.7888171444. The cubic root of 6144394 is about 183.1581938065.

It can be divided in two parts, 6 and 144394, that added together give a square (144400 = 380²).

The spelling of 6144394 in words is "six million, one hundred forty-four thousand, three hundred ninety-four".