745424 has 10 divisors (see below), whose sum is σ = 1444290. Its totient is φ = 372704.

The previous prime is 745397. The next prime is 745471. The reversal of 745424 is 424547.

It can be written as a sum of positive squares in only one way, i.e., 462400 + 283024 = 680^2 + 532^2 .

It is a junction number, because it is equal to n+sod(n) for n = 745393 and 745402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23279 + ... + 23310.

It is an arithmetic number, because the mean of its divisors is an integer number (144429).

2⁷⁴⁵⁴²⁴ is an apocalyptic number.

It is an amenable number.

745424 is a deficient number, since it is larger than the sum of its proper divisors (698866).

745424 is a wasteful number, since it uses less digits than its factorization.

745424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46597 (or 46591 counting only the distinct ones).

The product of its digits is 4480, while the sum is 26.

The square root of 745424 is about 863.3794067500. The cubic root of 745424 is about 90.6708715851.

The spelling of 745424 in words is "seven hundred forty-five thousand, four hundred twenty-four".