2301540 has 48 divisors (see below), whose sum is σ = 6531840. Its totient is φ = 605440.

The previous prime is 2301521. The next prime is 2301547. The reversal of 2301540 is 451032.

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

It is not an unprimeable number, because it can be changed into a prime (2301547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5125 + ... + 5555.

It is an arithmetic number, because the mean of its divisors is an integer number (136080).

2^2301540 is an apocalyptic number.

2301540 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 2301540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3265920).

2301540 is an abundant number, since it is smaller than the sum of its proper divisors (4230300).

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

2301540 is a wasteful number, since it uses less digits than its factorization.

2301540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532 (or 530 counting only the distinct ones).

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

The square root of 2301540 is about 1517.0827268149. The cubic root of 2301540 is about 132.0300666129.

Adding to 2301540 its reverse (451032), we get a palindrome (2752572).

It can be divided in two parts, 230 and 1540, that added together give a triangular number (1770 = T₅₉).

The spelling of 2301540 in words is "two million, three hundred one thousand, five hundred forty".