749148816 has 80 divisors (see below), whose sum is σ = 2089477376. Its totient is φ = 229920768.

The previous prime is 749148779. The next prime is 749148817. The reversal of 749148816 is 618841947.

It is a super-2 number, since 2×749148816² = 1122447897028403712, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (749148817) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 287616 + ... + 290208.

Almost surely, 2^749148816 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 749148816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1044738688).

749148816 is an abundant number, since it is smaller than the sum of its proper divisors (1340328560).

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

749148816 is a wasteful number, since it uses less digits than its factorization.

749148816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3080 (or 3074 counting only the distinct ones).

The product of its digits is 387072, while the sum is 48.

The square root of 749148816 is about 27370.5830409219. The cubic root of 749148816 is about 908.2164543120.

The spelling of 749148816 in words is "seven hundred forty-nine million, one hundred forty-eight thousand, eight hundred sixteen".