144408290 has 32 divisors (see below), whose sum is σ = 281591856. Its totient is φ = 53003520.

The previous prime is 144408281. The next prime is 144408293. The reversal of 144408290 is 92804441.

It is a Cunningham number, because it is equal to 12017²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 51998521 + 92409769 = 7211^2 + 9613^2 .

It is not an unprimeable number, because it can be changed into a prime (144408293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19280 + ... + 25700.

Almost surely, 2^144408290 is an apocalyptic number.

144408290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144408290 is a deficient number, since it is larger than the sum of its proper divisors (137183566).

144408290 is a wasteful number, since it uses less digits than its factorization.

144408290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6614.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 144408290 is about 12017.0000416077. Note that the first 4 decimals coincide. The cubic root of 144408290 is about 524.6431921745.

The spelling of 144408290 in words is "one hundred forty-four million, four hundred eight thousand, two hundred ninety".