772228800 has 504 divisors, whose sum is σ = 3223174656. Its totient is φ = 171694080.

The previous prime is 772228783. The next prime is 772228811. The reversal of 772228800 is 8822277.

It is a tau number, because it is divible by the number of its divisors (504).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4737519 + ... + 4737681.

Almost surely, 2^772228800 is an apocalyptic number.

772228800 is a gapful number since it is divisible by the number (70) 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 772228800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1611587328).

772228800 is an abundant number, since it is smaller than the sum of its proper divisors (2450945856).

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

772228800 is a wasteful number, since it uses less digits than its factorization.

772228800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 772228800 is about 27789.0050199715. The cubic root of 772228800 is about 917.4491405159.

The spelling of 772228800 in words is "seven hundred seventy-two million, two hundred twenty-eight thousand, eight hundred".