3941520 has 80 divisors (see below), whose sum is σ = 13338432. Its totient is φ = 954880.

The previous prime is 3941507. The next prime is 3941537. The reversal of 3941520 is 251493.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 1894 + ... + 3386.

Almost surely, 2^3941520 is an apocalyptic number.

3941520 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 3941520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6669216).

3941520 is an abundant number, since it is smaller than the sum of its proper divisors (9396912).

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

3941520 is a wasteful number, since it uses less digits than its factorization.

3941520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1520 (or 1514 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 3941520 is about 1985.3261696759. The cubic root of 3941520 is about 157.9627108498.

The spelling of 3941520 in words is "three million, nine hundred forty-one thousand, five hundred twenty".