779240 has 96 divisors (see below), whose sum is σ = 2298240. Its totient is φ = 232320.

The previous prime is 779239. The next prime is 779249. The reversal of 779240 is 42977.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (779249) 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, 33869 + ... + 33891.

It is an arithmetic number, because the mean of its divisors is an integer number (23940).

2⁷⁷⁹²⁴⁰ is an apocalyptic number.

779240 is a gapful number since it is divisible by the number (70) 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 779240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1149120).

779240 is an abundant number, since it is smaller than the sum of its proper divisors (1519000).

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

779240 is a wasteful number, since it uses less digits than its factorization.

779240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63 (or 48 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 779240 is about 882.7457165005. The cubic root of 779240 is about 92.0217339956.

The spelling of 779240 in words is "seven hundred seventy-nine thousand, two hundred forty".