144720630 has 24 divisors (see below), whose sum is σ = 376273872. Its totient is φ = 38592144.

The previous prime is 144720629. The next prime is 144720637. The reversal of 144720630 is 36027441.

144720630 is a `hidden beast` number, since 1 + 4 + 4 + 7 + 20 + 630 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 144720594 and 144720603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144720637) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 803914 + ... + 804093.

It is an arithmetic number, because the mean of its divisors is an integer number (15678078).

Almost surely, 2^144720630 is an apocalyptic number.

144720630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144720630 is an abundant number, since it is smaller than the sum of its proper divisors (231553242).

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

144720630 is a wasteful number, since it uses less digits than its factorization.

144720630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1608020 (or 1608017 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 144720630 is about 12029.9887780496. The cubic root of 144720630 is about 525.0211692144.

The spelling of 144720630 in words is "one hundred forty-four million, seven hundred twenty thousand, six hundred thirty".