3942560 has 48 divisors (see below), whose sum is σ = 9557352. Its totient is φ = 1536000.

The previous prime is 3942553. The next prime is 3942569. The reversal of 3942560 is 652493.

It can be written as a sum of positive squares in 4 ways, for example, as 2835856 + 1106704 = 1684^2 + 1052^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3942569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6260 + ... + 6860.

Almost surely, 2^3942560 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 3942560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4778676).

3942560 is an abundant number, since it is smaller than the sum of its proper divisors (5614792).

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

3942560 is a wasteful number, since it uses less digits than its factorization.

3942560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657 (or 649 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 3942560 is about 1985.5880740979. The cubic root of 3942560 is about 157.9766028485.

The spelling of 3942560 in words is "three million, nine hundred forty-two thousand, five hundred sixty".