2430040 has 32 divisors (see below), whose sum is σ = 5544000. Its totient is φ = 958464.

The previous prime is 2430013. The next prime is 2430047. The reversal of 2430040 is 400342.

It is a self number, because there is not a number n which added to its sum of digits gives 2430040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2430047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2776 + ... + 3544.

It is an arithmetic number, because the mean of its divisors is an integer number (173250).

2^2430040 is an apocalyptic number.

2430040 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 2430040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2772000).

2430040 is an abundant number, since it is smaller than the sum of its proper divisors (3113960).

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

2430040 is a wasteful number, since it uses less digits than its factorization.

2430040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 859 (or 855 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 2430040 is about 1558.8585567652. The cubic root of 2430040 is about 134.4428800725.

Adding to 2430040 its reverse (400342), we get a palindrome (2830382).

The spelling of 2430040 in words is "two million, four hundred thirty thousand, forty".