3524720 has 20 divisors (see below), whose sum is σ = 8195160. Its totient is φ = 1409856.

The previous prime is 3524713. The next prime is 3524737. The reversal of 3524720 is 274253.

It is a tau number, because it is divible by the number of its divisors (20).

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21950 + ... + 22109.

It is an arithmetic number, because the mean of its divisors is an integer number (409758).

Almost surely, 2^3524720 is an apocalyptic number.

It is an amenable number.

3524720 is an abundant number, since it is smaller than the sum of its proper divisors (4670440).

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

3524720 is a wasteful number, since it uses less digits than its factorization.

3524720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44072 (or 44066 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 3524720 is about 1877.4237667612. The cubic root of 3524720 is about 152.1860602430.

Adding to 3524720 its reverse (274253), we get a palindrome (3798973).

The spelling of 3524720 in words is "three million, five hundred twenty-four thousand, seven hundred twenty".