2440830 has 64 divisors (see below), whose sum is σ = 6842880. Its totient is φ = 545664.

The previous prime is 2440819. The next prime is 2440831. The reversal of 2440830 is 380442.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 2440797 and 2440806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2440831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12292 + ... + 12488.

It is an arithmetic number, because the mean of its divisors is an integer number (106920).

2^2440830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2440830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3421440).

2440830 is an abundant number, since it is smaller than the sum of its proper divisors (4402050).

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

2440830 is a wasteful number, since it uses less digits than its factorization.

2440830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2440830 is about 1562.3155891176. The cubic root of 2440830 is about 134.6415732199.

The spelling of 2440830 in words is "two million, four hundred forty thousand, eight hundred thirty".