745127424 has 240 divisors, whose sum is σ = 2292322032. Its totient is φ = 241532928.

The previous prime is 745127407. The next prime is 745127473. The reversal of 745127424 is 424721547.

745127424 is a `hidden beast` number, since 74 + 512 + 74 + 2 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 in 23 ways as a sum of consecutive naturals, for example, 6593992 + ... + 6594104.

Almost surely, 2^745127424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 745127424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1146161016).

745127424 is an abundant number, since it is smaller than the sum of its proper divisors (1547194608).

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

745127424 is an equidigital number, since it uses as much as digits as its factorization.

745127424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199 (or 171 counting only the distinct ones).

The product of its digits is 62720, while the sum is 36.

The square root of 745127424 is about 27297.0222551838. The cubic root of 745127424 is about 906.5884515381.

The spelling of 745127424 in words is "seven hundred forty-five million, one hundred twenty-seven thousand, four hundred twenty-four".