3603840 has 64 divisors (see below), whose sum is σ = 11493360. Its totient is φ = 960512.

The previous prime is 3603833. The next prime is 3603857. The reversal of 3603840 is 483063.

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 (24).

It is a self number, because there is not a number n which added to its sum of digits gives 3603840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 982 + ... + 2858.

Almost surely, 2^3603840 is an apocalyptic number.

3603840 is a gapful number since it is divisible by the number (30) 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 3603840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5746680).

3603840 is an abundant number, since it is smaller than the sum of its proper divisors (7889520).

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

3603840 is a wasteful number, since it uses less digits than its factorization.

3603840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899 (or 1887 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 3603840 is about 1898.3782552484. The cubic root of 3603840 is about 153.3163602300.

The spelling of 3603840 in words is "three million, six hundred three thousand, eight hundred forty".