745328 has 20 divisors (see below), whose sum is σ = 1484280. Its totient is φ = 362304.

The previous prime is 745307. The next prime is 745337. The reversal of 745328 is 823547.

It is a happy number.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 745328.

It is a congruent number.

It is an unprimeable number.

745328 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 3 ways as a sum of consecutive naturals, for example, 38 + ... + 1221.

It is an arithmetic number, because the mean of its divisors is an integer number (74214).

2⁷⁴⁵³²⁸ is an apocalyptic number.

It is an amenable number.

745328 is a deficient number, since it is larger than the sum of its proper divisors (738952).

745328 is a wasteful number, since it uses less digits than its factorization.

745328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304 (or 1298 counting only the distinct ones).

The product of its digits is 6720, while the sum is 29.

The square root of 745328 is about 863.3238094713. The cubic root of 745328 is about 90.6669790454. Note that the first 3 decimals are identical.

The spelling of 745328 in words is "seven hundred forty-five thousand, three hundred twenty-eight".