770422900 has 72 divisors (see below), whose sum is σ = 1817270840. Its totient is φ = 281802240.

The previous prime is 770422897. The next prime is 770422901. The reversal of 770422900 is 9224077.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 242985744 + 527437156 = 15588^2 + 22966^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (770422901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138982 + ... + 144418.

Almost surely, 2^770422900 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 770422900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (908635420).

770422900 is an abundant number, since it is smaller than the sum of its proper divisors (1046847940).

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

770422900 is a wasteful number, since it uses less digits than its factorization.

770422900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5573 (or 5566 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 770422900 is about 27756.4929340866. The cubic root of 770422900 is about 916.7334136888.

Adding to 770422900 its reverse (9224077), we get a palindrome (779646977).

The spelling of 770422900 in words is "seven hundred seventy million, four hundred twenty-two thousand, nine hundred".