770428260 has 120 divisors (see below), whose sum is σ = 2762168640. Its totient is φ = 176095296.

The previous prime is 770428259. The next prime is 770428261. The reversal of 770428260 is 62824077.

It is an interprime number because it is at equal distance from previous prime (770428259) and next prime (770428261).

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 (770428261) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 22630 + ... + 45309.

It is an arithmetic number, because the mean of its divisors is an integer number (23018072).

Almost surely, 2^770428260 is an apocalyptic number.

770428260 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

770428260 is an abundant number, since it is smaller than the sum of its proper divisors (1991740380).

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

770428260 is a wasteful number, since it uses less digits than its factorization.

770428260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67967 (or 67956 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 770428260 is about 27756.5894879036. The cubic root of 770428260 is about 916.7355396553.

The spelling of 770428260 in words is "seven hundred seventy million, four hundred twenty-eight thousand, two hundred sixty".