745531536 has 80 divisors (see below), whose sum is σ = 2041119360. Its totient is φ = 234071040.

The previous prime is 745531517. The next prime is 745531541. The reversal of 745531536 is 635135547.

745531536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 745531494 and 745531503.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50541 + ... + 63603.

It is an arithmetic number, because the mean of its divisors is an integer number (25513992).

Almost surely, 2^745531536 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 745531536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1020559680).

745531536 is an abundant number, since it is smaller than the sum of its proper divisors (1295587824).

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

745531536 is a wasteful number, since it uses less digits than its factorization.

745531536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13144 (or 13138 counting only the distinct ones).

The product of its digits is 189000, while the sum is 39.

The square root of 745531536 is about 27304.4233779071. The cubic root of 745531536 is about 906.7523148137.

The spelling of 745531536 in words is "seven hundred forty-five million, five hundred thirty-one thousand, five hundred thirty-six".