144454442 has 16 divisors (see below), whose sum is σ = 238724064. Its totient is φ = 65010000.

The previous prime is 144454417. The next prime is 144454469. The reversal of 144454442 is 244454441.

It is a junction number, because it is equal to n+sod(n) for n = 144454399 and 144454408.

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, 30284 + ... + 34727.

It is an arithmetic number, because the mean of its divisors is an integer number (14920254).

Almost surely, 2^144454442 is an apocalyptic number.

144454442 is a deficient number, since it is larger than the sum of its proper divisors (94269622).

144454442 is a wasteful number, since it uses less digits than its factorization.

144454442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65125.

The product of its digits is 40960, while the sum is 32.

The square root of 144454442 is about 12018.9201678021. The cubic root of 144454442 is about 524.6990771323.

Subtracting 144454442 from its reverse (244454441), we obtain a palindrome (99999999).

The spelling of 144454442 in words is "one hundred forty-four million, four hundred fifty-four thousand, four hundred forty-two".