144220656 has 40 divisors (see below), whose sum is σ = 394488144. Its totient is φ = 45245440.

The previous prime is 144220613. The next prime is 144220679. The reversal of 144220656 is 656022441.

It is a congruent 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 in 7 ways as a sum of consecutive naturals, for example, 87555 + ... + 89186.

Almost surely, 2^144220656 is an apocalyptic number.

144220656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

144220656 is an abundant number, since it is smaller than the sum of its proper divisors (250267488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144220656 is a wasteful number, since it uses less digits than its factorization.

144220656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176769 (or 176763 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 144220656 is about 12009.1904806277. The cubic root of 144220656 is about 524.4158655041.

The spelling of 144220656 in words is "one hundred forty-four million, two hundred twenty thousand, six hundred fifty-six".