4281840 has 120 divisors (see below), whose sum is σ = 15185040. Its totient is φ = 1078272.

The previous prime is 4281839. The next prime is 4281853. The reversal of 4281840 is 481824.

It is a tau number, because it is divible by the number of its divisors (120).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13524 + ... + 13836.

It is an arithmetic number, because the mean of its divisors is an integer number (126542).

Almost surely, 2^4281840 is an apocalyptic number.

4281840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4281840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7592520).

4281840 is an abundant number, since it is smaller than the sum of its proper divisors (10903200).

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

4281840 is a wasteful number, since it uses less digits than its factorization.

4281840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

The square root of 4281840 is about 2069.2607375582. The cubic root of 4281840 is about 162.3840909133.

The spelling of 4281840 in words is "four million, two hundred eighty-one thousand, eight hundred forty".