4563840 has 64 divisors (see below), whose sum is σ = 14553360. Its totient is φ = 1216512.

The previous prime is 4563829. The next prime is 4563847. The reversal of 4563840 is 483654.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 4563798 and 4563807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4563847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 732 + ... + 3108.

Almost surely, 2^4563840 is an apocalyptic number.

4563840 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 4563840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7276680).

4563840 is an abundant number, since it is smaller than the sum of its proper divisors (9989520).

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

4563840 is a wasteful number, since it uses less digits than its factorization.

4563840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2399 (or 2387 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 4563840 is about 2136.3145835761. The cubic root of 4563840 is about 165.8734216751.

The spelling of 4563840 in words is "four million, five hundred sixty-three thousand, eight hundred forty".