2104522400 has 72 divisors (see below), whose sum is σ = 5144608224. Its totient is φ = 840672000.

The previous prime is 2104522393. The next prime is 2104522423. The reversal of 2104522400 is 42254012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 839549 + ... + 842051.

It is an arithmetic number, because the mean of its divisors is an integer number (71452892).

Almost surely, 2^2104522400 is an apocalyptic number.

2104522400 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 2104522400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2572304112).

2104522400 is an abundant number, since it is smaller than the sum of its proper divisors (3040085824).

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

2104522400 is a wasteful number, since it uses less digits than its factorization.

2104522400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3574 (or 3561 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 2104522400 is about 45875.0738419024. The cubic root of 2104522400 is about 1281.4977584723.

Adding to 2104522400 its reverse (42254012), we get a palindrome (2146776412).

The spelling of 2104522400 in words is "two billion, one hundred four million, five hundred twenty-two thousand, four hundred".