2233721400 has 96 divisors (see below), whose sum is σ = 6933782400. Its totient is φ = 594864000.

The previous prime is 2233721351. The next prime is 2233721419. The reversal of 2233721400 is 41273322.

It is a super-2 number, since 2×2233721400² = 9979022585635920000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 549375 + ... + 553425.

It is an arithmetic number, because the mean of its divisors is an integer number (72226900).

Almost surely, 2^2233721400 is an apocalyptic number.

2233721400 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 2233721400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3466891200).

2233721400 is an abundant number, since it is smaller than the sum of its proper divisors (4700061000).

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

2233721400 is a wasteful number, since it uses less digits than its factorization.

2233721400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4989 (or 4980 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 2233721400 is about 47262.2619010136. The cubic root of 2233721400 is about 1307.2028969577.

Adding to 2233721400 its reverse (41273322), we get a palindrome (2274994722).

The spelling of 2233721400 in words is "two billion, two hundred thirty-three million, seven hundred twenty-one thousand, four hundred".