749370648 has 64 divisors (see below), whose sum is σ = 2036482560. Its totient is φ = 228410496.

The previous prime is 749370641. The next prime is 749370691. The reversal of 749370648 is 846073947.

It is a happy number.

749370648 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 = 749370597 and 749370606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749370641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22161 + ... + 44607.

It is an arithmetic number, because the mean of its divisors is an integer number (31820040).

Almost surely, 2^749370648 is an apocalyptic number.

749370648 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 749370648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1018241280).

749370648 is an abundant number, since it is smaller than the sum of its proper divisors (1287111912).

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

749370648 is a wasteful number, since it uses less digits than its factorization.

749370648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22576 (or 22572 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 48.

The square root of 749370648 is about 27374.6351208559. The cubic root of 749370648 is about 908.3060900806.

The spelling of 749370648 in words is "seven hundred forty-nine million, three hundred seventy thousand, six hundred forty-eight".