144740384 has 12 divisors (see below), whose sum is σ = 284957694. Its totient is φ = 72370176.

The previous prime is 144740381. The next prime is 144740413. The reversal of 144740384 is 483047441.

It can be written as a sum of positive squares in only one way, i.e., 144672784 + 67600 = 12028^2 + 260^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (144740381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2261537 + ... + 2261600.

Almost surely, 2^144740384 is an apocalyptic number.

It is an amenable number.

144740384 is a deficient number, since it is larger than the sum of its proper divisors (140217310).

144740384 is an equidigital number, since it uses as much as digits as its factorization.

144740384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4523147 (or 4523139 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 35.

The square root of 144740384 is about 12030.8097815567. The cubic root of 144740384 is about 525.0450561482.

The spelling of 144740384 in words is "one hundred forty-four million, seven hundred forty thousand, three hundred eighty-four".