144381490 has 16 divisors (see below), whose sum is σ = 283512960. Its totient is φ = 52502320.

The previous prime is 144381467. The next prime is 144381491. The reversal of 144381490 is 94183441.

It is not an unprimeable number, because it can be changed into a prime (144381491) 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, 656170 + ... + 656389.

It is an arithmetic number, because the mean of its divisors is an integer number (17719560).

Almost surely, 2^144381490 is an apocalyptic number.

144381490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144381490 is a deficient number, since it is larger than the sum of its proper divisors (139131470).

144381490 is a wasteful number, since it uses less digits than its factorization.

144381490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312577.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 144381490 is about 12015.8849029108. The cubic root of 144381490 is about 524.6107348794.

The spelling of 144381490 in words is "one hundred forty-four million, three hundred eighty-one thousand, four hundred ninety".