2115454600 has 96 divisors (see below), whose sum is σ = 5630889600. Its totient is φ = 724032000.

The previous prime is 2115454589. The next prime is 2115454643. The reversal of 2115454600 is 64545112.

It is a super-2 number, since 2×2115454600² = 8950296329322320000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1173700 + ... + 1175500.

It is an arithmetic number, because the mean of its divisors is an integer number (58655100).

Almost surely, 2^2115454600 is an apocalyptic number.

2115454600 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 2115454600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2815444800).

2115454600 is an abundant number, since it is smaller than the sum of its proper divisors (3515435000).

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

2115454600 is a wasteful number, since it uses less digits than its factorization.

2115454600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2663 (or 2654 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 2115454600 is about 45994.0713570782. The cubic root of 2115454600 is about 1283.7128931085.

Adding to 2115454600 its reverse (64545112), we get a palindrome (2179999712).

The spelling of 2115454600 in words is "two billion, one hundred fifteen million, four hundred fifty-four thousand, six hundred".