2445660 has 96 divisors (see below), whose sum is σ = 8709120. Its totient is φ = 558144.

The previous prime is 2445649. The next prime is 2445689. The reversal of 2445660 is 665442.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3457 + ... + 4103.

It is an arithmetic number, because the mean of its divisors is an integer number (90720).

2^2445660 is an apocalyptic number.

2445660 is a gapful number since it is divisible by the number (20) 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 2445660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4354560).

2445660 is an abundant number, since it is smaller than the sum of its proper divisors (6263460).

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

2445660 is a wasteful number, since it uses less digits than its factorization.

2445660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672 (or 664 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 2445660 is about 1563.8606075990. The cubic root of 2445660 is about 134.7303258589.

The spelling of 2445660 in words is "two million, four hundred forty-five thousand, six hundred sixty".