8266838400 has 384 divisors, whose sum is σ = 30491798400. Its totient is φ = 2187233280.

The previous prime is 8266838347. The next prime is 8266838423. The reversal of 8266838400 is 48386628.

It is a happy number.

8266838400 is a `hidden beast` number, since 8 + 266 + 8 + 384 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14082907 + ... + 14083493.

It is an arithmetic number, because the mean of its divisors is an integer number (79405725).

Almost surely, 2^8266838400 is an apocalyptic number.

8266838400 is a gapful number since it is divisible by the number (80) 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 8266838400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15245899200).

8266838400 is an abundant number, since it is smaller than the sum of its proper divisors (22224960000).

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

8266838400 is a wasteful number, since it uses less digits than its factorization.

8266838400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783 (or 760 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 45.

The square root of 8266838400 is about 90922.1557157550. The cubic root of 8266838400 is about 2021.9937834958.

The spelling of 8266838400 in words is "eight billion, two hundred sixty-six million, eight hundred thirty-eight thousand, four hundred".