745254 has 32 divisors (see below), whose sum is σ = 1705440. Its totient is φ = 241056.

The previous prime is 745249. The next prime is 745273. The reversal of 745254 is 452547.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

It is a congruent number.

It is an unprimeable number.

745254 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 15 ways as a sum of consecutive naturals, for example, 1812 + ... + 2184.

It is an arithmetic number, because the mean of its divisors is an integer number (53295).

2⁷⁴⁵²⁵⁴ is an apocalyptic number.

745254 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 745254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (852720).

745254 is an abundant number, since it is smaller than the sum of its proper divisors (960186).

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

745254 is a wasteful number, since it uses less digits than its factorization.

745254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421 (or 415 counting only the distinct ones).

The product of its digits is 5600, while the sum is 27.

The square root of 745254 is about 863.2809507918. The cubic root of 745254 is about 90.6639783180.

It can be divided in two parts, 74525 and 4, that added together give a square (74529 = 273²).

The spelling of 745254 in words is "seven hundred forty-five thousand, two hundred fifty-four".