144918630 has 48 divisors (see below), whose sum is σ = 393176160. Its totient is φ = 36964224.

The previous prime is 144918629. The next prime is 144918647. The reversal of 144918630 is 36819441.

144918630 is a `hidden beast` number, since 1 + 4 + 4 + 9 + 18 + 630 = 666.

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 23 ways as a sum of consecutive naturals, for example, 32935 + ... + 37074.

It is an arithmetic number, because the mean of its divisors is an integer number (8191170).

Almost surely, 2^144918630 is an apocalyptic number.

144918630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144918630 is an abundant number, since it is smaller than the sum of its proper divisors (248257530).

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

144918630 is a wasteful number, since it uses less digits than its factorization.

144918630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70045 (or 70042 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 144918630 is about 12038.2153993023. The cubic root of 144918630 is about 525.2604965747.

The spelling of 144918630 in words is "one hundred forty-four million, nine hundred eighteen thousand, six hundred thirty".