770340 has 48 divisors (see below), whose sum is σ = 2221632. Its totient is φ = 199296.

The previous prime is 770311. The next prime is 770353. The reversal of 770340 is 43077.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 770340.

It is an unprimeable number.

770340 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2047 + ... + 2393.

It is an arithmetic number, because the mean of its divisors is an integer number (46284).

2⁷⁷⁰³⁴⁰ 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 770340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1110816).

770340 is an abundant number, since it is smaller than the sum of its proper divisors (1451292).

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

770340 is a wasteful number, since it uses less digits than its factorization.

770340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 21.

The square root of 770340 is about 877.6901503378. The cubic root of 770340 is about 91.6700531348.

The spelling of 770340 in words is "seven hundred seventy thousand, three hundred forty", and thus it is an iban number.