745218 has 24 divisors (see below), whose sum is σ = 1700400. Its totient is φ = 235224.

The previous prime is 745201. The next prime is 745231. The reversal of 745218 is 812547.

745218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 745191 and 745200.

It is an unprimeable number.

745218 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 11 ways as a sum of consecutive naturals, for example, 748 + ... + 1431.

It is an arithmetic number, because the mean of its divisors is an integer number (70850).

2⁷⁴⁵²¹⁸ is an apocalyptic number.

745218 is an abundant number, since it is smaller than the sum of its proper divisors (955182).

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

745218 is a wasteful number, since it uses less digits than its factorization.

745218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2206 (or 2203 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 745218 is about 863.2600998540. The cubic root of 745218 is about 90.6625184329.

It can be divided in two parts, 74521 and 8, that added together give a square (74529 = 273²).

The spelling of 745218 in words is "seven hundred forty-five thousand, two hundred eighteen".