2305140 has 48 divisors (see below), whose sum is σ = 6534528. Its totient is φ = 607104.

The previous prime is 2305133. The next prime is 2305153. The reversal of 2305140 is 415032.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a zygodrome in base 14.

It is a congruent number.

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, 5994 + ... + 6366.

It is an arithmetic number, because the mean of its divisors is an integer number (136136).

2^2305140 is an apocalyptic number.

2305140 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 2305140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3267264).

2305140 is an abundant number, since it is smaller than the sum of its proper divisors (4229388).

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

2305140 is a wasteful number, since it uses less digits than its factorization.

2305140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 486 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 2305140 is about 1518.2687509134. The cubic root of 2305140 is about 132.0988699118.

The spelling of 2305140 in words is "two million, three hundred five thousand, one hundred forty".