770020272 has 120 divisors (see below), whose sum is σ = 2479642880. Its totient is φ = 218505600.

The previous prime is 770020261. The next prime is 770020297. The reversal of 770020272 is 272020077.

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, 149679 + ... + 154737.

Almost surely, 2^770020272 is an apocalyptic number.

770020272 is a gapful number since it is divisible by the number (72) 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 770020272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1239821440).

770020272 is an abundant number, since it is smaller than the sum of its proper divisors (1709622608).

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

770020272 is a wasteful number, since it uses less digits than its factorization.

770020272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5231 (or 5222 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 27.

The square root of 770020272 is about 27749.2391247039. The cubic root of 770020272 is about 916.5736889203.

It can be divided in two parts, 7700 and 20272, that added together give a palindrome (27972).

The spelling of 770020272 in words is "seven hundred seventy million, twenty thousand, two hundred seventy-two".