144726280 has 16 divisors (see below), whose sum is σ = 325634220. Its totient is φ = 57890496.

The previous prime is 144726271. The next prime is 144726289. The reversal of 144726280 is 82627441.

It is a happy number.

144726280 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (144726271) and next prime (144726289).

It can be written as a sum of positive squares in 2 ways, for example, as 133125444 + 11600836 = 11538^2 + 3406^2 .

It is a super-2 number, since 2×144726280² = 41891392245276800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144726289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1809039 + ... + 1809118.

Almost surely, 2^144726280 is an apocalyptic number.

144726280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144726280 is an abundant number, since it is smaller than the sum of its proper divisors (180907940).

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

144726280 is a wasteful number, since it uses less digits than its factorization.

144726280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3618168 (or 3618164 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 144726280 is about 12030.2236055694. The cubic root of 144726280 is about 525.0280015299.

The spelling of 144726280 in words is "one hundred forty-four million, seven hundred twenty-six thousand, two hundred eighty".