4281440 has 24 divisors (see below), whose sum is σ = 10115280. Its totient is φ = 1712512.

The previous prime is 4281439. The next prime is 4281443. The reversal of 4281440 is 441824.

4281440 is nontrivially palindromic in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4281443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13220 + ... + 13539.

It is an arithmetic number, because the mean of its divisors is an integer number (421470).

Almost surely, 2^4281440 is an apocalyptic number.

4281440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4281440 is an abundant number, since it is smaller than the sum of its proper divisors (5833840).

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

4281440 is a wasteful number, since it uses less digits than its factorization.

4281440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26774 (or 26766 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 4281440 is about 2069.1640824256. The cubic root of 4281440 is about 162.3790342352.

The spelling of 4281440 in words is "four million, two hundred eighty-one thousand, four hundred forty".