749448280 has 64 divisors (see below), whose sum is σ = 1946306880. Its totient is φ = 254400000.

The previous prime is 749448269. The next prime is 749448341. The reversal of 749448280 is 82844947.

It is a happy number.

749448280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 749448280.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15030 + ... + 41530.

It is an arithmetic number, because the mean of its divisors is an integer number (30411045).

Almost surely, 2^749448280 is an apocalyptic number.

749448280 is a gapful number since it is divisible by the number (70) 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 749448280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (973153440).

749448280 is an abundant number, since it is smaller than the sum of its proper divisors (1196858600).

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

749448280 is a wasteful number, since it uses less digits than its factorization.

749448280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26620 (or 26616 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 46.

The square root of 749448280 is about 27376.0530391070. The cubic root of 749448280 is about 908.3374547036.

The spelling of 749448280 in words is "seven hundred forty-nine million, four hundred forty-eight thousand, two hundred eighty".