3925530 has 128 divisors (see below), whose sum is σ = 12533760. Its totient is φ = 855360.

The previous prime is 3925489. The next prime is 3925541. The reversal of 3925530 is 355293.

3925530 = 93² + 94² + ... + 232².

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3925494 and 3925503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 58557 + ... + 58623.

It is an arithmetic number, because the mean of its divisors is an integer number (97920).

Almost surely, 2^3925530 is an apocalyptic number.

3925530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3925530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6266880).

3925530 is an abundant number, since it is smaller than the sum of its proper divisors (8608230).

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

3925530 is a wasteful number, since it uses less digits than its factorization.

3925530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 27.

The square root of 3925530 is about 1981.2950310340. The cubic root of 3925530 is about 157.7488130759.

The spelling of 3925530 in words is "three million, nine hundred twenty-five thousand, five hundred thirty".