144345730 has 16 divisors (see below), whose sum is σ = 260352000. Its totient is φ = 57620592.

The previous prime is 144345727. The next prime is 144345739. The reversal of 144345730 is 37543441.

It is a junction number, because it is equal to n+sod(n) for n = 144345692 and 144345701.

It is not an unprimeable number, because it can be changed into a prime (144345739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9474 + ... + 19453.

It is an arithmetic number, because the mean of its divisors is an integer number (16272000).

Almost surely, 2^144345730 is an apocalyptic number.

144345730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144345730 is a deficient number, since it is larger than the sum of its proper divisors (116006270).

144345730 is a wasteful number, since it uses less digits than its factorization.

144345730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29433.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 144345730 is about 12014.3967805296. The cubic root of 144345730 is about 524.5674199344.

It can be divided in two parts, 14434 and 5730, that added together give a square (20164 = 142²).

The spelling of 144345730 in words is "one hundred forty-four million, three hundred forty-five thousand, seven hundred thirty".