785220 has 48 divisors (see below), whose sum is σ = 2298240. Its totient is φ = 199936.

The previous prime is 785219. The next prime is 785221. The reversal of 785220 is 22587.

It is an interprime number because it is at equal distance from previous prime (785219) and next prime (785221).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (785221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1096 + ... + 1664.

It is an arithmetic number, because the mean of its divisors is an integer number (47880).

2⁷⁸⁵²²⁰ 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 785220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1149120).

785220 is an abundant number, since it is smaller than the sum of its proper divisors (1513020).

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

785220 is a wasteful number, since it uses less digits than its factorization.

785220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604 (or 602 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 785220 is about 886.1264018186. The cubic root of 785220 is about 92.2565304092.

The spelling of 785220 in words is "seven hundred eighty-five thousand, two hundred twenty".