3875520 has 112 divisors (see below), whose sum is σ = 13459968. Its totient is φ = 936960.

The previous prime is 3875467. The next prime is 3875537. The reversal of 3875520 is 255783.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10377 + ... + 10743.

Almost surely, 2^3875520 is an apocalyptic number.

3875520 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 3875520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6729984).

3875520 is an abundant number, since it is smaller than the sum of its proper divisors (9584448).

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

3875520 is a wasteful number, since it uses less digits than its factorization.

3875520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398 (or 388 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 3875520 is about 1968.6340442043. The cubic root of 3875520 is about 157.0760581889.

The spelling of 3875520 in words is "three million, eight hundred seventy-five thousand, five hundred twenty".