144572730 has 16 divisors (see below), whose sum is σ = 346974624. Its totient is φ = 38552720.

The previous prime is 144572719. The next prime is 144572731. The reversal of 144572730 is 37275441.

It is a junction number, because it is equal to n+sod(n) for n = 144572691 and 144572700.

It is not an unprimeable number, because it can be changed into a prime (144572731) 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 7 ways as a sum of consecutive naturals, for example, 2409516 + ... + 2409575.

It is an arithmetic number, because the mean of its divisors is an integer number (21685914).

Almost surely, 2^144572730 is an apocalyptic number.

144572730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144572730 is an abundant number, since it is smaller than the sum of its proper divisors (202401894).

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

144572730 is a wasteful number, since it uses less digits than its factorization.

144572730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4819101.

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 144572730 is about 12023.8400687967. The cubic root of 144572730 is about 524.8422564634.

The spelling of 144572730 in words is "one hundred forty-four million, five hundred seventy-two thousand, seven hundred thirty".