2303544400 has 120 divisors (see below), whose sum is σ = 5699883200. Its totient is φ = 894136320.

The previous prime is 2303544371. The next prime is 2303544407. The reversal of 2303544400 is 44453032.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2303544407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3422464 + ... + 3423136.

Almost surely, 2^2303544400 is an apocalyptic number.

2303544400 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 2303544400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2849941600).

2303544400 is an abundant number, since it is smaller than the sum of its proper divisors (3396338800).

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

2303544400 is a wasteful number, since it uses less digits than its factorization.

2303544400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933 (or 922 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 2303544400 is about 47995.2539320296. The cubic root of 2303544400 is about 1320.6838360611.

Adding to 2303544400 its reverse (44453032), we get a palindrome (2347997432).

The spelling of 2303544400 in words is "two billion, three hundred three million, five hundred forty-four thousand, four hundred".