749516544 has 216 divisors, whose sum is σ = 2579487120. Its totient is φ = 214050816.

The previous prime is 749516533. The next prime is 749516557. The reversal of 749516544 is 445615947.

749516544 is a `hidden beast` number, since 7 + 4 + 95 + 16 + 544 = 666.

It is a tau number, because it is divible by the number of its divisors (216).

It is a self number, because there is not a number n which added to its sum of digits gives 749516544.

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, 337582 + ... + 339794.

It is an arithmetic number, because the mean of its divisors is an integer number (11942070).

Almost surely, 2^749516544 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 749516544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1289743560).

749516544 is an abundant number, since it is smaller than the sum of its proper divisors (1829970576).

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

749516544 is a wasteful number, since it uses less digits than its factorization.

749516544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2252 (or 2225 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 749516544 is about 27377.2997938073. The cubic root of 749516544 is about 908.3650327087.

The spelling of 749516544 in words is "seven hundred forty-nine million, five hundred sixteen thousand, five hundred forty-four".