144316840 has 16 divisors (see below), whose sum is σ = 324712980. Its totient is φ = 57726720.

The previous prime is 144316829. The next prime is 144316853. The reversal of 144316840 is 48613441.

It can be written as a sum of positive squares in 2 ways, for example, as 138156516 + 6160324 = 11754^2 + 2482^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1803921 + ... + 1804000.

Almost surely, 2^144316840 is an apocalyptic number.

144316840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144316840 is an abundant number, since it is smaller than the sum of its proper divisors (180396140).

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

144316840 is a wasteful number, since it uses less digits than its factorization.

144316840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3607932 (or 3607928 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 144316840 is about 12013.1944128113. The cubic root of 144316840 is about 524.5324211762.

The spelling of 144316840 in words is "one hundred forty-four million, three hundred sixteen thousand, eight hundred forty".