2405660 has 12 divisors (see below), whose sum is σ = 5051928. Its totient is φ = 962256.

The previous prime is 2405651. The next prime is 2405677. The reversal of 2405660 is 665042.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60122 + ... + 60161.

It is an arithmetic number, because the mean of its divisors is an integer number (420994).

2^2405660 is an apocalyptic number.

2405660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2405660 is an abundant number, since it is smaller than the sum of its proper divisors (2646268).

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

2405660 is a wasteful number, since it uses less digits than its factorization.

2405660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120292 (or 120290 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2405660 is about 1551.0190198705. The cubic root of 2405660 is about 133.9917571227.

The spelling of 2405660 in words is "two million, four hundred five thousand, six hundred sixty".