3523520 has 168 divisors, whose sum is σ = 11350752. Its totient is φ = 1013760.

The previous prime is 3523519. The next prime is 3523561. The reversal of 3523520 is 253253.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3523492 and 3523501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 271034 + ... + 271046.

It is an arithmetic number, because the mean of its divisors is an integer number (67564).

Almost surely, 2^3523520 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 3523520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5675376).

3523520 is an abundant number, since it is smaller than the sum of its proper divisors (7827232).

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

3523520 is a wasteful number, since it uses less digits than its factorization.

3523520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59 (or 38 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 3523520 is about 1877.1041526777. The cubic root of 3523520 is about 152.1687875706.

Adding to 3523520 its reverse (253253), we get a palindrome (3776773).

The spelling of 3523520 in words is "three million, five hundred twenty-three thousand, five hundred twenty".