745539984 has 160 divisors (see below), whose sum is σ = 2470913280. Its totient is φ = 210816000.

The previous prime is 745539961. The next prime is 745540027. The reversal of 745539984 is 489935547.

745539984 is a `hidden beast` number, since 7 + 4 + 553 + 9 + 9 + 84 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 745539984.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 304204 + ... + 306644.

It is an arithmetic number, because the mean of its divisors is an integer number (15443208).

Almost surely, 2^745539984 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 745539984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1235456640).

745539984 is an abundant number, since it is smaller than the sum of its proper divisors (1725373296).

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

745539984 is a wasteful number, since it uses less digits than its factorization.

745539984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2566 (or 2554 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The square root of 745539984 is about 27304.5780776777. The cubic root of 745539984 is about 906.7557397591.

The spelling of 745539984 in words is "seven hundred forty-five million, five hundred thirty-nine thousand, nine hundred eighty-four".