770222880 has 288 divisors, whose sum is σ = 3075456384. Its totient is φ = 171859968.

The previous prime is 770222863. The next prime is 770222881. The reversal of 770222880 is 88222077.

It is a tau number, because it is divible by the number of its divisors (288).

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

It is not an unprimeable number, because it can be changed into a prime (770222881) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 432552 + ... + 434328.

It is an arithmetic number, because the mean of its divisors is an integer number (10678668).

Almost surely, 2^770222880 is an apocalyptic number.

770222880 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 770222880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1537728192).

770222880 is an abundant number, since it is smaller than the sum of its proper divisors (2305233504).

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

770222880 is a wasteful number, since it uses less digits than its factorization.

770222880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848 (or 1837 counting only the distinct ones).

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

The square root of 770222880 is about 27752.8895792853. The cubic root of 770222880 is about 916.6540715992.

The spelling of 770222880 in words is "seven hundred seventy million, two hundred twenty-two thousand, eight hundred eighty".