2400020304 has 80 divisors (see below), whose sum is σ = 6829515264. Its totient is φ = 720201600.

The previous prime is 2400020303. The next prime is 2400020317. The reversal of 2400020304 is 4030200042.

It is a happy number.

It is a super-2 number, since 2×2400020304² = 11520194919224504832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2400020303) 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, 32319 + ... + 76449.

Almost surely, 2^2400020304 is an apocalyptic number.

2400020304 is a gapful number since it is divisible by the number (24) 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 2400020304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3414757632).

2400020304 is an abundant number, since it is smaller than the sum of its proper divisors (4429494960).

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

2400020304 is a wasteful number, since it uses less digits than its factorization.

2400020304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44256 (or 44250 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 2400020304 is about 48990.0020820575. The cubic root of 2400020304 is about 1338.8696757555.

Adding to 2400020304 its reverse (4030200042), we get a palindrome (6430220346).

The spelling of 2400020304 in words is "two billion, four hundred million, twenty thousand, three hundred four".