745000 has 40 divisors (see below), whose sum is σ = 1757250. Its totient is φ = 296000.
The previous prime is 744977. The next prime is 745001. The reversal of 745000 is 547.
745000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 5 ways, for example, as 8836 + 736164 = 94^2 + 858^2 .
It is a tau number, because it is divible by the number of its divisors (40).
It is not an unprimeable number, because it can be changed into a prime (745001) by changing a digit.
745000 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 9 ways as a sum of consecutive naturals, for example, 4926 + ... + 5074.
2745000 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 745000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (878625).
745000 is an abundant number, since it is smaller than the sum of its proper divisors (1012250).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
745000 is a wasteful number, since it uses less digits than its factorization.
745000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 175 (or 156 counting only the distinct ones).
The product of its (nonzero) digits is 140, while the sum is 16.
The square root of 745000 is about 863.1338250816. The cubic root of 745000 is about 90.6536770126.
Adding to 745000 its reverse (547), we get a palindrome (745547).
The spelling of 745000 in words is "seven hundred forty-five thousand".
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