4263840 has 240 divisors, whose sum is σ = 17563392. Its totient is φ = 953856.

The previous prime is 4263827. The next prime is 4263859. The reversal of 4263840 is 483624.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 90697 + ... + 90743.

Almost surely, 2^4263840 is an apocalyptic number.

4263840 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 4263840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8781696).

4263840 is an abundant number, since it is smaller than the sum of its proper divisors (13299552).

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

4263840 is a wasteful number, since it uses less digits than its factorization.

4263840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81 (or 64 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 4263840 is about 2064.9067775568. The cubic root of 4263840 is about 162.1562278909.

The spelling of 4263840 in words is "four million, two hundred sixty-three thousand, eight hundred forty".