3543920 has 40 divisors (see below), whose sum is σ = 8511360. Its totient is φ = 1370880.

The previous prime is 3543919. The next prime is 3543923. The reversal of 3543920 is 293453.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 3543920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3543923) 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, 1766 + ... + 3194.

It is an arithmetic number, because the mean of its divisors is an integer number (212784).

Almost surely, 2^3543920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3543920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4255680).

3543920 is an abundant number, since it is smaller than the sum of its proper divisors (4967440).

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

3543920 is a wasteful number, since it uses less digits than its factorization.

3543920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473 (or 1467 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 3543920 is about 1882.5302122410. The cubic root of 3543920 is about 152.4618914004.

The spelling of 3543920 in words is "three million, five hundred forty-three thousand, nine hundred twenty".