144442894 has 16 divisors (see below), whose sum is σ = 224825328. Its totient is φ = 69541632.

The previous prime is 144442873. The next prime is 144442901. The reversal of 144442894 is 498244441.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2884 + ... + 17239.

It is an arithmetic number, because the mean of its divisors is an integer number (14051583).

Almost surely, 2^144442894 is an apocalyptic number.

144442894 is a deficient number, since it is larger than the sum of its proper divisors (80382434).

144442894 is a wasteful number, since it uses less digits than its factorization.

144442894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20259.

The product of its digits is 147456, while the sum is 40.

The square root of 144442894 is about 12018.4397489857. The cubic root of 144442894 is about 524.6850949007.

The spelling of 144442894 in words is "one hundred forty-four million, four hundred forty-two thousand, eight hundred ninety-four".