749078784 has 108 divisors (see below), whose sum is σ = 2176246800. Its totient is φ = 247790592.

The previous prime is 749078783. The next prime is 749078807. The reversal of 749078784 is 487870947.

749078784 is a `hidden beast` number, since 7 + 490 + 78 + 7 + 84 = 666.

It is a super-2 number, since 2×749078784² = 1122238049277837312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 749078784.

It is not an unprimeable number, because it can be changed into a prime (749078783) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 319087 + ... + 321425.

Almost surely, 2^749078784 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 749078784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1088123400).

749078784 is an abundant number, since it is smaller than the sum of its proper divisors (1427168016).

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

749078784 is a wasteful number, since it uses less digits than its factorization.

749078784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500 (or 2483 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 54.

The square root of 749078784 is about 27369.3036813142. The cubic root of 749078784 is about 908.1881527715.

The spelling of 749078784 in words is "seven hundred forty-nine million, seventy-eight thousand, seven hundred eighty-four".