741780 has 72 divisors (see below), whose sum is σ = 2430792.
Its totient is φ = 182016.
The previous prime is 741721. The next prime is 741781. The reversal of 741780 is 87147.
It can be written as a sum of positive squares in 4 ways, for example, as 15876 + 725904 = 126^2 + 852^2
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (741781) by changing a digit.
741780 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 23 ways as a sum of consecutive naturals, for example, 2182 + ... + 2498.
It is an arithmetic number, because the mean of its divisors is an integer number (33761).
2741780 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 741780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1215396).
741780 is an abundant number, since it is smaller than the sum of its proper divisors (1689012).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
741780 is a wasteful number, since it uses less digits than its factorization.
741780 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 345 (or 340 counting only the distinct ones).
The product of its (nonzero) digits is 1568, while the sum is 27.
The square root of 741780 is about 861.2665092757.
The cubic root of 741780 is about 90.5228822007.
It can be divided in two parts, 741 and 780, that added together give a square (1521 = 392).
The spelling of 741780 in words is "seven hundred forty-one thousand, seven hundred eighty".