3940580 has 36 divisors (see below), whose sum is σ = 9628668. Its totient is φ = 1350720.

The previous prime is 3940579. The next prime is 3940589. The reversal of 3940580 is 850493.

It can be written as a sum of positive squares in 2 ways, for example, as 729316 + 3211264 = 854^2 + 1792^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3940589) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1031 + ... + 2990.

It is an arithmetic number, because the mean of its divisors is an integer number (267463).

Almost surely, 2^3940580 is an apocalyptic number.

It is an amenable number.

3940580 is an abundant number, since it is smaller than the sum of its proper divisors (5688088).

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

3940580 is a wasteful number, since it uses less digits than its factorization.

3940580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4044 (or 4035 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 3940580 is about 1985.0894186409. The cubic root of 3940580 is about 157.9501525175.

The spelling of 3940580 in words is "three million, nine hundred forty thousand, five hundred eighty".