772340 has 36 divisors (see below), whose sum is σ = 1718724. Its totient is φ = 291456.

The previous prime is 772339. The next prime is 772349. The reversal of 772340 is 43277.

It can be written as a sum of positive squares in 2 ways, for example, as 357604 + 414736 = 598^2 + 644^2 .

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (772349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10544 + ... + 10616.

2⁷⁷²³⁴⁰ 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 772340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (859362).

772340 is an abundant number, since it is smaller than the sum of its proper divisors (946384).

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

772340 is a wasteful number, since it uses less digits than its factorization.

772340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 772340 is about 878.8287660290. The cubic root of 772340 is about 91.7493175586.

The spelling of 772340 in words is "seven hundred seventy-two thousand, three hundred forty", and thus it is an iban number.