745456 has 10 divisors (see below), whose sum is σ = 1444352. Its totient is φ = 372720.

The previous prime is 745397. The next prime is 745471. The reversal of 745456 is 654547.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23280 + ... + 23311.

2⁷⁴⁵⁴⁵⁶ is an apocalyptic number.

It is an amenable number.

745456 is a deficient number, since it is larger than the sum of its proper divisors (698896).

745456 is a wasteful number, since it uses less digits than its factorization.

745456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46599 (or 46593 counting only the distinct ones).

The product of its digits is 16800, while the sum is 31.

The square root of 745456 is about 863.3979383807. The cubic root of 745456 is about 90.6721690240.

Subtracting from 745456 its reverse (654547), we obtain a palindrome (90909).

The spelling of 745456 in words is "seven hundred forty-five thousand, four hundred fifty-six".