3525540 has 48 divisors (see below), whose sum is σ = 10030272. Its totient is φ = 925056.

The previous prime is 3525539. The next prime is 3525541. The reversal of 3525540 is 455253.

It is an interprime number because it is at equal distance from previous prime (3525539) and next prime (3525541).

It is a self number, because there is not a number n which added to its sum of digits gives 3525540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3525541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3582 + ... + 4458.

It is an arithmetic number, because the mean of its divisors is an integer number (208964).

Almost surely, 2^3525540 is an apocalyptic number.

3525540 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 3525540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5015136).

3525540 is an abundant number, since it is smaller than the sum of its proper divisors (6504732).

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

3525540 is a wasteful number, since it uses less digits than its factorization.

3525540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956 (or 954 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 3525540 is about 1877.6421384279. The cubic root of 3525540 is about 152.1978609811.

The spelling of 3525540 in words is "three million, five hundred twenty-five thousand, five hundred forty".